Harvest Spice Smelly JellySmelly Jelly is the NEW Air Freshener that everyone is talking about! Since they can be refreshed over and over again, they can last indefinitely...or so I'm told! You can use them in your home, in your office, and even in your car. Our Harvest Spice scent will get you ready for falltime pretty fast. Spices are blended with herbs to make this zippy scent, Enjoy!