Deadly Effective Smelly Jelly 1oz. Jar As soon as you open the jar, you know that fish can’t help but smell this stuff. Smelly Jelly Scent has taken the pure essence of each forage species and mixed in a special jelly base with the consistency of Vaseline. This stuff really sticks to your lures. Try it on a jig, worm, or hard bait and experience a fish that won’t let go. Choose your favorite scent, and see if it doesn’t produce more bites. You can use Smelly Jelly to mask your scent after handling lures and as an attractant to bring fish to the bait. When they bite, the natural flavor will make them hold on longer.