Homemade Vapor Shower Disc Ingredients: Baking soda Water Essential oils: eucalyptus, rosemary, and lavender Muffin tin Muffin liners Directions: 1. Add 2-3 cups baking soda to a mixing bowl. 2. Slowly add enough water to make a thick paste that feels like a putty. 3. Add 15 drops of each essential oil. 4. Spoon into a muffin tin with a paper liner and let sit out for 12-18 hours. 5. Pop your disks out of the paper liner, put them in your shower, and enjoy!