DIY deodorizing disks (for trashcans, diaper pails, etc.). Lasts 1 month. •2 cups baking soda •1 – 2 cups distilled water (or you can boil your water for 10 minutes.) •3-4 drops Lavender essential oil or whatever oil you choose. •Silicone mold or muffin pan Add essential oil to approximately 1/2c water. Pour the water/oil mixture into the baking soda and mix well. Continue to add water until you have a THICK paste. Divide mixture into molds or muffin tin cups. Let dry 24-48hrs.