My lease buddies got their hands on some kind of concoction a friend of theirs made up. Corn, jello, kool aid and something else in a trash can and left it in the sun for 3 years.
It made catfish bait smell like roses.
One of them touched my neck after he'd washed his hands a dozen times and it still left a residual smell on my neck.
We hunted over after it had been out all day....never saw a hog.