Haven't tried it with vasoline but I soaked some plastics in a mixture of X-brand liquid attractant, minced garlic powder, and sea salt. I took them out a week later, rinsed them off, and let them dry. The scent stayed with them for a little while but it wasn't worth the mess and smelling like a fresh garlic clove for about 24 hours. IMHO it did make the garlic scent much stronger and last longer than most garlic flavored liquid attractants I've tried. However, after finally getting around to trying MegaStrike, I now leave the garlic in the kitchen. I'm a believer.