1 cup unscented soap flakes or a bar of soap, grated
2 Tbs. of hot water
Liquid food coloring
Mix soap and hot water in a plastic bowl, then divide into small bowls, one for each color. Add 12 drops of liquid food coloring to each bowl.
Stir mixture until it thickens and becomes hard to stir. Scoop up by the tablespoonful and roll into thick log shapes. Let dry 1-2 days.