- glycerin soap at a craft store (how ever much you want)
- food colors
- essential oil/s of your choice (optional)
How to Make Bathtub Crayons
- 1Buy some glycerin soap at a craft store. Melt it in the microwave, add food coloring, and pour into a mold. I used an ice cube tray.
- 2You can also add essential oils if you go for scents, though I find that a bit unnecessary for bath crayons.
- 3Takes about an hour to cool completely, then pop out of the mold and you have crayons!