Ingredients:

1. 1/2 cup rice flour.
2. 1/2 cup cornstarch.
3. 1/2 cup salt.
4. 2 teaspoons cream of tartar.
5. 1 cup water 1 teaspoon cooking oil.
6. Food coloring, if desired.

Directions:
Mix ingredients. Cook and stir on low heat for 3 minutes or until it forms a ball. Cool completely before storing in a sealable plastic bag.

 Source: Parents.com