Soap Tip #2 - Using Scraps Save your soap scraps. Melt them together in a double boiler. Add small amounts of your favorite essential oil or herb. (You'll have to experiment to see how much is too much.) Pour into a makeshift mold. (Small plastic food containers work well.) The next day empty mold onto cloth. Let soap dry until useable. Voila! Personalized soap. Back to Soap Tips