1 cup corn starch
2 cups baking soda
1 ΒΌ cups cold water

Stir the corn starch and baking soda together in saucepan. Mix in water & cook over medium heat stirring constantly until mixture reaches a slightly moist mashed potato-like consistency. Turn out on plate & cover with a damp cloth. When cool, knead until ready for use.
Store tightly covered. To dry creations, leave at room temperature for several days.