<p> To make the smelly jelly air flow freshener, combine perfume oil, water, plus a bit involving scented dye in to a glass jar. Stir the mixture with a spoon to evenly spread out the crystals, and even store in a good airtight container. The scent will disperse evenly once the particular jar is cooled down, but it could get discolored if not really stored properly. When you have several