1 cup cornstarch
2 cups baking soda (a one pound box)
1 1/4 cups water
Combine cornstarch and baking soda in pan. Add water gradually, stirring until smooth. Place mix over med. heat and cook until thick and dough like in consistency, stirring constantly. Turn mix out on a pastry board and knead well. Cover with damp cloth or keep in plastic bag. This is good for plaques and other models that will be painted when dry.