1.  In a bowl, dump out desired amount of corn starch.  I used about half a box but you can use more or less.  Add about the same amount of shaving cream and a few squirts of food coloring.  Use your hands to mix it together.  You will probably need to add additional shaving cream to create a soft dough that doesn’t crumble too easily.  If the dough dries out too much while the kids are using it, just add more shaving cream.