I came across this new and improved version of homemade playdough on the Rainy Day Resource site. The Kool-Aid colors the playdough and makes it smell really nice- way better than that weird smell that regular homemade stuff has.
2 cups flour
4 teaspoons cream of tartar
1 cup salt
1 1/2 cups boiling water
3 – 4 Tablespoons vegetable oil
Kool Aid

Add one package of Kool Aid mix, oil and food coloring to boiling water. Combine remaining ingredients, and mix well. As you knead it, the dough will get smoother. Store in airtight container. Delightfully scented, very pliable and easy to roll or sculpt.