Into make these little beauties, you first need a heat-proof jars, food coloring colors of your choice, and essential oil. You can find inexpensive essential oils of various scents at craft stores and some grocery stores. I chose a raspberry scented oil...it smells delightful! Into each jar, drop a few drops (I repeat...a few...it doesn't take more than 2 or 3) of food coloring. Then, put in about 30 drops of essential oil, give or take.