Water Colors - cooking recipe

Ingredients

1 Tbsp. white vinegar
2 Tbsp. baking soda
1 Tbsp. cornstarch
food coloring
1/4 tsp. glycerine (optional) *

Preparation

Mix vinegar and baking soda in bowl.
When mixture stops foaming, add cornstarch.
Mix well.
Divide mixture into small piles.
Add food coloring, different color to each pile.
Mix (optional:
add 1/4 teaspoon glycerine).