So it was my turn to make homemade playdough for Preschool Veg's class and they sent home an easy recipe!
2 cups flour
1 cup salt
2 T cream of tartar
2 cups water
2 T cooking oil
Mix liquid ingredients, add dry ingredients and mix well. (to be fair, I didn't read the directions and added everything at once and it turned out dandy :) ) microwave for 1 minute and stir. Repeat 3 more times or until stiff and non-sticky. (it took me 4 times)
Have fun! Easy and the teachers says it lasts about 1 month!