This was really easy, very inexpensive and it smelled AWESOME! (I used pink lemonade Kool-Aid this time!) It's also nice knowing that your kids will be okay if they take a taste :)
1 cup flour
1 pkg unsweetened Kool-Aid
2 Tbsp. cream of tartar
1 Tbsp. veg oil
1/4 cup salt
1 cup water
*Mix flour, salt, cream of tartar, and Kool-Aid in a medium pot. Add water and oil. Stir over medium heat for 3-5 mins. When mixture forms a ball in the pot, remove and knead until smooth. Put in a plastic bag and refrigerate.