These are so cool. Just fill a small bowl with enough essential oil to cover the bottom with about 1/8" oil and add toothpicks. Let them sit for at least 8 hours until all oil is absorbed. Then let them air dry for 24 hours. Store in a glass jar or a mint tin. Use any flavor you want. Peppermint is the most popular. I love grapefruit.
The continued many uses...
Let me know your ideas. The uses of Essential Oils are endless.