GEL AIR FRESHER using liquid potpourri, or from scratch. They make great gifts!  You will need: 2 cups of distilled water Essential oil/fragrance of your choice. 4 packages of knox gelatin Food coloring (optional) Heat 1 cup of water almost to a boil. Add the gelatin and stir until dissolved. Remove from heat add another cup of distilled water, 10-20 drops of oil/fragrance, and food coloring if desired. You can replace food coloring and oil/fragrance with premade liquid potpourri (available at most craft stores, candle shops, etc.). The procedure would be the same. Heat 1 cup of the liquid potpourri, almost to a  boil. Stir in 4 packets of Knox gelatin, until dissolved. Then stir in 1 cup  cool liquid potpourri.  Pour the mixture into clean baby food jars and set at room temperature  overnight until "set". You can place the jars in the  refrigerator if you need them to set more quickly, but be aware that the smell will permeate the  fridge.  For gift giving, you can decorate the baby food jars by wrapping with  material, or gluing on wallpaper, stickers, wrapping paper, etc.  To use, place the jar on the stovetop (not directly on the burner!) while  cooking, heat in a potpourri burner, or simply set out on a table and enjoy  the aroma.