Cookie Cutter Crayons Several old crayons Assorted cookie cutters or candy molds Old saucepan or tin can for melting crayons Aluminum foil Take the paper off the crayons and put them in an old saucepan or put the crayons in an empty tin can and place the can in a saucepan filled with water. Melt the wax by turning the stove on low heat. Place the cookie cutters on a sheet of aluminum foil. Pour the melted wax into assorted cookie cutters. You may need to hold the cookie cutters down to keep the melted crayons from running out. Wait for the wax to set, then cool, and pop your brand new crayons out.