Chop 20 ounces of White Melt and Pour Soap Base into small, uniform cubes. Place them into a heat-safe container and melt in the microwave using 20-30 second bursts. Stir in between each burst.

Add 0.3 ounces of Midnight Fragrance Oil and 0.3 ounces of Vanilla Color Stabilizer. Stir to fully mix. Pour half of the soap into a separate container (it’s okay to eyeball it).

Set one container of white soap aside. To the other container of white soap, add 1 tablespoon of walnut shells and mix until there are no clumps. Add a small shaving of the Brown Oxide Color Block and stir. If the color block isn’t melting, place the soap in the microwave using 5 second bursts until it does.

Wait for the soap to cool and form a thick skin on top. Use a spoon to press it in random shapes. You want to make peaks and divots – like the bottom of the ocean floor. There is no right or wrong way to do it, so have fun with it. Once you’re happy with the bottom layer, set the mold aside.

Chop 32 ounces of Clear Melt and Pour Soap Base into small, uniform cubes. Place 16 ounces of the chopped soap base into one container with a small chunk of the Caribbean Blue Color Block. Place 8 ounces of soap base into another container with small chunks of the Hydrated Chrome Green Color Block. Place the remaining 8 ounces of soap base into another container with small chunks of the remaining Caribbean Blue Color Block.

Melt all 3 containers of soap in the microwave using 20-30 second bursts, stirring between each one. You can melt all 3 containers at the same time if your microwave is large enough, just make sure to keep an eye on the smaller containers so they don’t get too hot and scorch.p>

Add 0.3 ounces of Midnight Waters Fragrance Oil and 0.3 ounces of Vanilla Color Stabilizer to Caribbean Blue colored soap. Then add 0.1 ounces of Midnight Waters Fragrance Oil and 0.1 ounces of Vanilla Color Stabilizer to the other 2 containers of soap colored with Hydrated Chrome Green and other Caribbean Blue colored soap. Mix in the fragrance thoroughly.

Remelt the container of white soap that was set aside using 10-15 second bursts. Now it’s time to swirl and layer. The 2 colors you’ll be working with first are the Caribbean Blue soap, and the white soap. All of those colors should be about 120-125° F.

Spritz the bottom layer of soap with 99% isopropyl alcohol and pour a bit of the Caribbean Blue Soap into the mold. Spritz with 99% isopropyl alcohol after every pour to get rid of bubbles as necessary. Then pour a little bit of white soap into the blue soap, all the way down the mold. 

Allow the soap to cool in the mold, but only slightly. For this project you don’t need to wait for each layer to cool completely. Wait a few minutes for the soap to form a light to medium skin, spritz with 99% isopropyl alcohol, and pour a small amount of the Caribbean Blue soap, followed by small pours of the white and Caribbean Blue soap. Spritz with 99% isopropyl alcohol to get rid of bubbles as necessary.

Allow the soap to cool in the mold for about 1-2 minutes. This helps suspend the layers and keep the colors from swirling together too much and becoming muddled. If any of the soap gets too thick to pour, place it in microwave for 5-10 second bursts.

Spritz with 99% isopropyl alcohol and continue to pour small amounts of the white soap, Caribbean Blue, and the rest of the darker Caribbean Blue soap. You should still have about 2/3 of the Caribbean Blue soap left.

Tip: Squeezing the soap mold helps you determine the temperature. Below, you can see it has a thin layer when squeezed and there's no melted soap oozing out. This is a great time to pour more soap on top.

Allow these pours to cool slightly, spritz with 99% isopropyl alcohol, and begin pouring small amounts of the Hydrated Chrome Green soap, white soap, and Caribbean Blue soap into the mold. Spritz with 99% isopropyl alcohol to get rid of bubbles as necessary.

Continue pouring layers of the white, Hydrated Chrome Green, and Caribbean Blue soap until all of the Hydrated Chrome Green soap is in the mold. You should still have a little bit of Caribbean Blue soap and white soap left.

Allow these pours to cool slightly, spritz with 99% isopropyl alcohol, and begin pouring the last of the white and Caribbean Blue soap into the mold. Save any last bits of white for the very top.

Our final white soap was a little bit on the thick side, and we ended up with some big glops of soap on top. If it’s still somewhat fluid, you can use a clean-up tool (or knife, spoon, chopstick, etc.) and push and swirl the melt and pour to break up any big clumps.

Allow the soap to fully harden and cool in the mold for at least 4-5 hours, preferably overnight. We find when we try to cut into melt and pour soap that’s slightly warm, the layers are more likely to separate. Once it’s cool, remove from the mold and cut into bars. Wrap the bars in plastic wrap to prevent glycerin dew. Enjoy.