Step 1

In a medium mixing bowl, add the cornstarch, vapor rub and 4 Tablespoons of water. Stir well to mix the ingredients.

Step 2

If the mixture still seems too dry, add more water as needed (up to 6 Tablespoons) until a thick paste forms.

Step 3

Drizzle 3-4 drops of the blue and the green soap colorants into the mixture and stir until you achieve your desired color.

Step 4

Transfer the vapor rub paste into your silicone molds, filling up to the top of each mold.

Step 5

Freeze for 2 hours to allow the shower steamers to harden.