Play dough recipe...

1 cup flour (plus more for kneading)
1 cup water
2 tsp. cream of tartar
1/4 cup salt
1 Tbsp vegetable oil
Food coloring/unsweetened koolaid mix
Glitter if desired

Combine all ingredients except the coloring/koolaid & glitter in a pan. Whisk until fairly smooth and then heat over medium temperature, stirring constantly with a (wooden) spoon. When the dough becomes very hard to stir and starts coming away from the pan, pour/scrape out onto a sheet of floured wax paper, or onto a floured countertop. Allow to cool, then knead until smooth and elastic, adding in flour as needed. You can knead in a few drops of food coloring or the koolaid, and any glitter, at this point.

Store in plastic bags or in a tub with a tight-closing lid.