2 cups water
1 cup table salt
4 teaspoons cream of tartar
2 tablespoons vegetable oil (or baby oil)
and food coloring or scents such as oil of pepermint or vanilla if desired.
Mix all ingredients and heat over medium heat, stirring constantly till mixture forms into large ball. Remove from pot, let stand till cool enough to handle, and then knead for several minutes.
If you know me at all, I believe cooking, and, making things with your child/student's is very important. Why buy play dough, if you can make it and the children can play with something they have made themselves?