Simply blend one drop each of lime and brilliant blue Labcolors in an opaque melt-and-pour soap base for the perfect minty green. I made a basic rectangle with black oxide pigment and chopped it up for the chips. It worked great! For the actual bars, I used a variety of Soapy Love scalloped shapes molds.
Use 4ml of fragrance per pound of melt-and-pour soap. Let the green cool and thicken slightly, but not too much to where you can’t pour it. Add a couple cubes of white soap to help the cooling process go faster. If you put your chips into too hot of soap (generally above 125 or higher), the color will bleed out of them and make a gray mess and the chips will melt away.
Sprinkle a few of the chips on the bottom of the mold before pouring the green so that you can see them on the top of the bar, and be sure to spray, spray, spray with rubbing alcohol so everything sticks together.
Top it off with a thin light green or white layer to make the colors pop. Don’t cover over the chips completely– we want to see those! Put them in the freezer for up to 20 minutes and you’re done. Now try not to eat them.
— from Kat at Otion