Water Colors

1 Tbs white vinegar
2 Tbs baking soda
1 Tbs cornstarch
1/4 Tbs glycerine
Styrofoam egg carton
Red, yellow and blue food coloring

1. Mix vinegar and baking soda together in a small bowl.

2. When mixture stops foaming, add cornstarch and glycerine, mixing well.

3. Pour mixture into carton

4. Add several drops of a different food coloring to each carton cup. Stir until the color is well-mixed. Be sure to add plenty of coloring, since the tint will lighten upon drying. Mix primary colors to make secondary colors. For intense colors, add kool-aid.

5. Let set overnight to harden.