Baked Clay Formations

Good for kids' crafts, school projects, Cub Scouts, and Activity Days!
Use heavy mixer:
4 cups flour
1 cup salt
1 tsp. alum
1-1/2 cups water (more, if needed)
Food Coloring (optional)
Mix ingredients in bowl.  If tood dry, add more water.  Roll or mold as desired.  Bake at 250 degrees for 30 min.  Turn and bake 1-1/2 hours more until firm and done.  Remove and cool.  Sand lightly and paint, if desired.