If you've ever looked at a custom silicone piece and wondered, “How did they make those colors flow like that?”, the answer isn't always as simple as choosing a few colors.

At KUMOCOOM, color is only the starting point. The way silicone is wrapped, poured, blended, dripped, or finished can completely change the final appearance of a piece. Some effects can be planned quite precisely, while others depend heavily on how the silicone moves during the pour. Some can be added to a base color, while others work best with translucent silicone. And some are intentionally unpredictable.

In our previous Studio Diary, “From Sketch to Silicone: How a Custom KUMOCOOM Piece Comes to Life,” we looked at the custom process itself, from the first customer idea and design sketch to production and final approval. We also talked about an important reality of handmade silicone work: the sketch is a reference, not a guarantee that every detail will appear exactly the same in the finished piece.

This time, we're focusing on the visual side of customization.

What exactly is a Solid? What's the difference between a Fade and a Wrapped Color? Why does glitter sometimes seem to disappear? And what happens when you give us a few colors and let the silicone decide the rest?

Here's our guide to the custom effects currently available, or being explored, at KUMOCOOM.

Base Pour Styles

Base pour styles determine the main color structure of a piece. Think of them as the foundation of the final design. Additional effects such as drips, shimmer, glitter, or hand-painted details can sometimes be added on top of these basic styles.

1. Solid

The simplest option is also one of the most versatile: Solid.

A Solid piece uses one main color throughout the toy. The color itself can have very different appearances depending on the silicone finish.

1.1 Opaque Colors

These are our standard opaque colors, such as yellow, green, blue, white, and many other shades.

A opaque color gives the finished piece a clean and consistent appearance and works particularly well when you want the color itself to be the main focus.

1.2 Metallic Colors

Metallic silicone contains a reflective finish that gives the color a stronger sheen. Depending on the shade, the result can range from a subtle metallic glow to a much more dramatic reflective surface.

Examples include metallic red, metallic blue, bronze, gold, and silver.

1.3 Translucent Colors

Translucent silicone allows light to pass through the material, creating a softer and more dimensional appearance than opaque silicone.

But translucency isn't simply a choice between “clear” and “solid.” It exists across a wide spectrum.

This range of translucency can be surprisingly complex. The final appearance isn't determined by color alone—it can also be affected by pigment intensity, added particles such as shimmer or glitter, and the thickness of the silicone.

Clear silicone is the most transparent, with a water-like appearance. Once color is introduced, the silicone can become less transparent as the color becomes deeper or more concentrated. In a Fade, for example, a clear section may remain almost completely transparent while the colored section appears more translucent than clear.

Adding solid particles creates another change in appearance. Shimmer and glitter can make a translucent piece look much more opaque because the particles scatter and reflect light. With enough shimmer or glitter, the surface may appear almost solid from thicker areas, even though the silicone itself remains translucent. In thinner areas, however, the translucency can become much easier to see.

• Clear + Pink Drip
• Clear → Blue Fade
• Green Translucent
• Translucent + Shimmer
• The same four pieces viewed from the suction cup side

This is why photographs from different angles can sometimes tell very different stories. On a thin part of a piece, you may clearly see its translucent nature, while a thicker section—or an area containing more pigment or shimmer—may appear much more opaque.

In other words, translucent doesn't always look transparent. The same piece can appear clear, colored, or almost opaque depending on what is inside the silicone, how much of it is present, and how thick the silicone is in that particular area.

2. Fade

A Fade gradually transitions from one color into another rather than keeping the colors separated.

The transition can involve two colors or several colors, depending on the design.

2.1 Two-Color Fade

One color gradually transitions into a second color.

The goal is a smooth visual progression rather than a hard boundary between the two shades.

2.2 Three-Color Fade

Three colors can be arranged into a longer gradient, allowing the piece to transition through several stages of color.

2.3 Translucent-to-Opaque Fade

A translucent color can gradually transition into an opaque color, creating a different kind of depth as the amount of light passing through the silicone changes.

2.4 Translucent-to-Translucent Fade

Two translucent colors can also be combined into a softer, more layered gradient.

Because silicone is poured by hand, the exact transition between colors may vary slightly from one piece to another. A Fade is designed around a general color progression rather than an exact pixel-perfect boundary.

 

3. Wrapped Color

We call this effect Wrapped Color.

Unlike a Fade, where two colors gradually transition into each other, Wrapped Color creates a more defined relationship between the colors: one color forms the outer layer, while another sits inside it.

For example, a piece might use a white or metallic outer color with a gold inner color. Both colors remain visually distinct, creating the impression that one color is wrapping around or enclosing another.

The outer color can currently be:

• Metallic
• Solid
• Clear/translucent

The inner color is currently available as a single solid color.

Wrapped Color is especially effective for highlighting the details of a model. As the outer color settles around the raised and sculpted areas of the piece, it can naturally trace the contours of the design and make individual details stand out. The amount of outer color also changes the overall appearance of the piece, with more or less of the outer layer creating noticeably different color balances.

When a clear or translucent color is used for the outer layer, the effect can become even more interesting. The inner color may appear as though it has been sealed inside ice or suspended in water, creating a sense of depth and a softer, more dimensional look.

Wrapped Color isn't just a custom effect, either. Some of our regular KUMOCOOM colorations already use this technique, so you may have seen it in our existing designs without realizing it.

4. Color Blend

Another custom option is Color Blend.

In this technique, we pour two colors using a specific, repeatable pouring method that allows them to overlap and form layered patterns. From the side, you can often see the colors arranged in distinct layers, creating an appearance somewhat like pieces of colored fabric stacked or folded together.

Although the pouring method is defined, the final result isn't perfectly predictable. The two colors may not appear in an exact 1:1 balance—one color may occupy more of the piece while the other appears in smaller sections. The shape, thickness, and distribution of each layer can also vary from one pour to another.

This makes Color Blend a partially controllable effect. We can influence the overall structure through the way we pour the silicone, but the material still has a degree of freedom once the colors begin to flow and settle.

The result is a layered, dimensional texture that can look quite different from different angles. From one side, you may see one color dominating; from another, the individual layers and the interaction between the two colors can become much more apparent.

Additional Visual Effects

Base pour styles determine the main structure of a piece, but they don't have to be the only thing happening.

Some visual effects can be added to a base color or pour style to change the way the finished silicone catches light, glows, or displays details.

5. Hand-Painted Details

Hand-painted details can add another layer of character to a custom piece. At KUMOCOOM, we use hand painting in two main ways.

5.1 Painting Existing Model Details

We can paint details that are already part of the model, such as the heart on Pupcake, the bow on Maid's Secret, the bow on Glimmer Bow, or the cat face and paw pads on Shadow Paws.

Because these details are defined by the original sculpt, this type of hand painting is relatively controlled, and our artists are highly experienced with it. You can also find this technique in some of our regular KUMOCOOM colorations.

5.2 Painting Custom Patterns

We can also paint new patterns directly onto the base, such as cow prints, crosses, stars, and other decorative designs.

This type of customization is much more dependent on the artist's hand, so the final pattern can vary considerably in shape, placement, and composition. Even with a reference, the result may not be an exact reproduction, making this a much more unpredictable and experimental option.

 

6. Drip

A Drip effect creates the appearance of one color flowing downward—or upward—over another color.

There are two basic directions:

6.1 Tip-to-Base Drip

Color begins around the tip and flows downward toward the base.

6.2 Base-to-Tip Drip

Color begins around the base and flows upward toward the tip.

The exact drip paths and their positions are naturally irregular. We can control the general direction and color, but individual drips are not designed to appear in exactly the same position on every piece.

This irregularity is part of the appeal of a handmade pour.

For now, drip colors are available in solid and metallic colors.

 

7. Shimmer

Shimmer creates a subtle reflective effect within the silicone.

Unlike glitter, which is designed to produce visible sparkling particles, shimmer is softer. It tends to appear as a delicate sheen that becomes more noticeable as the piece moves under light.

Shimmer can be added to solid colors, but there is an important limitation: opaque silicone can partially hide the effect.

Depending on the base color and how much shimmer is used, the finished piece may look almost completely solid from a distance, with the shimmer becoming visible only under certain lighting or when viewed up close.

This is one reason why reference photos are useful when discussing a custom piece. The same shimmer effect can look dramatically different depending on the color and opacity of the silicone surrounding it.

8. Glitter

Glitter is different from shimmer.

While shimmer creates a softer reflective quality, glitter is intended to produce more distinct sparkling particles.

Glitter works best with translucent colors, where light can pass through the silicone and reach the glitter particles.

If you're imagining a piece covered in obvious sparkling flecks, a translucent base is usually a better starting point than an opaque one.

9. Pearlescent

Pearlescent gives silicone a soft, pearl-like sheen.

Instead of producing visible glitter particles, the effect creates a smooth, luminous surface that can resemble the subtle reflective quality of a seashell or pearl.

The appearance changes with the lighting and viewing angle, but the overall effect is softer and more elegant than traditional glitter.

Pearlescent can be especially interesting on colors that already have some translucency or depth, where the light can interact with the surface rather than simply reflecting from an opaque flat color.

10. Iridescent

Iridescent is related to Pearlescent, but the visual effect is different.

An iridescent surface can shift in color or reflect different tones depending on the viewing angle. Instead of simply looking glossy or pearly, it can reveal different colors as the piece moves.

Think of the changing colors you might see on a soap bubble, an opal, or certain shells.

This effect is particularly difficult to capture accurately in a single photograph. A piece may appear relatively subtle in a still image and show much more color variation when it is moved under light.

For this reason, we'll provide real product photos as references when showcasing this effect.

11. Glow-in-the-Dark

Glow-in-the-dark pigment can be incorporated into selected colors.

KUMOCOOM currently offers blue and green glow options.

The glow effect is intentionally localized rather than evenly illuminating the entire piece. Because the pigment is incorporated into the silicone during the handmade production process, the intensity may vary from one area to another.

Some areas may glow more strongly while others appear softer.

This means a glow effect should be thought of as part of the character of the pour rather than as a perfectly uniform coating.

Surprise Pours

So far, we've talked about effects where we have a defined technique or design direction.

But silicone has another side that makes handmade pouring especially interesting: sometimes, the most beautiful patterns happen when you stop trying to control every detail.

That's where Surprise Pours come in.

These effects are intentionally less predictable. Instead of following a fixed pouring pattern, we allow the silicone to move and interact more freely.

The final result depends on the flow, layering, timing, and interaction between the colors during the pour.

12. Cross-Layer Color

One of our more unpredictable effects creates a visual where two colors appear to weave or overlap across the piece.

Rather than producing a smooth gradient or clearly separated layers, the colors interact in a way that can create different visual impressions from different sides.

Because the pattern develops during the pour, the exact distribution cannot be predetermined.

We're still exploring how far this technique can be pushed, which is part of what makes these pieces interesting.

13. Random Color Blend

This is where we deliberately stop following a fixed pouring method.

With Random Color Blend, two or three colors are selected, but their final:

• Position
• Proportion
• Shape
• Flow
• Color distribution

are all allowed to develop naturally during the pour.

You might get a large area of one color with a small accent of another. You might get several distinct color blocks. Or the colors might interact and create unexpected shapes between them.

There is no reliable way to reproduce the exact same result.

And that's the point.

A Random Color Blend isn't designed to look identical to a reference piece. It is designed to let the silicone create something that could not have been planned perfectly in advance.

14. The Ultimate Surprise: A Color-Based Surprise Pour

We are also exploring another way to approach custom orders: what if you don't want to decide exactly what the final pattern should look like at all?

With a Color-Based Surprise Pour, you provide us with a small selection of colors you like, and we take care of the rest.

No detailed sketch.

No fixed color placement.

No exact pattern to reproduce.

Instead, your chosen colors become the palette, and the final composition is created through the natural flow of the silicone.

This creates a much higher level of uncertainty—but also something genuinely unique.

The same combination of colors could produce completely different results on different pours. In fact, even if we tried to recreate the same piece later, there would be no guarantee that the pattern could be reproduced.

That's what makes this type of custom especially interesting for collectors who enjoy the idea of owning something that exists only once.

But you still get a choice.

After the piece is finished, we'll take final photos and send them to you for approval, just like our other custom orders.

You can decide whether you want to see a sneak peek before the package arrives, or keep the final appearance as a true surprise until you open the box.

Either way, the finished photos are still part of our normal approval process.

Why the Same Colors Can Look Completely Different

One of the most important things to understand about custom silicone is that color selection and color placement are two different things.

You might choose the exact same three colors as another custom piece and still end up with a completely different result.

That's because silicone is not a digital medium.

During a pour, colors flow into one another. Their movement is affected by how they are layered, where they enter the mold, how much material is used, and how the different colors interact.

This is especially noticeable with:

• Drips
• Random Color Blend
• Surprise Pours
• Translucent effects
• Glitter and shimmer
• Complex gradients

A sketch can show us the intended direction. A reference photo can show us the mood. A color palette can tell us which colors matter most.

But the final silicone piece is created by the physical pouring process.

That's why two pieces made from the same concept can still have their own personalities.

A Few Things to Keep in Mind

Our custom effects are designed around what we can currently produce reliably. Some techniques are more predictable than others, and we're always learning from new pours.

A few practical limitations are worth knowing before you start planning a custom piece.

Custom firmness is not currently available

All KUMOCOOM custom pieces currently use our standard 0030 silicone firmness.

We don't currently offer custom firmness options.

Translucency changes how other effects appear

A color that looks one way in opaque silicone may look completely different when made translucent.

This is particularly important for glitter, shimmer, and layered effects.

Some effects are naturally subtle

Shimmer, Pearlescent, and certain translucent effects may be much more noticeable under specific lighting or at certain viewing angles.

A photograph may not always capture everything you can see when holding the finished piece in your hands.

Handmade means variation

Small differences in color placement, blending, drip patterns, and other visual details are a normal part of handmade silicone production.

The goal isn't to make every piece mechanically identical.

It's to create a piece that follows the agreed design direction while allowing the material itself to become part of the final result.

Your Idea, Our Pour

There isn't one “correct” way to design a custom silicone piece.

Maybe you want a clean two-color Fade.

Maybe you want metallic blue wrapped around a translucent purple.

Maybe you want a little shimmer hidden inside a soft translucent color.

Or maybe you simply have three colors you love and want to see what happens when we let the silicone take over.

That's what makes custom work interesting.

Some designs begin with a very specific sketch. Others begin with nothing more than a color palette.

And somewhere between those two approaches is where silicone starts doing something we can't completely predict.

Sketches give us direction. Colors give us a starting point. The pour creates the final piece.

And sometimes, the unexpected result is the part we end up loving most.