1 c. flour
1/2 c. salt
2 tbsp. vegetable oil
1 tsp. alum (if you can't find it at the grocery store, it is available at the drug store)

Add a small amount of water at a time until consistency of bread dough. It will not be more then 1/2 cup. Add food coloring, preferably to the water before mixing. You can make colors not available, such as purple by creatively mixing colors. Store in an airtight container or plastic bag. It lasts a long time.