I saw an old man bank fishing for bass using hotdog weenies and wd40.
Truth is,... it doesnt attract fish. The scent of the wd40 masks your scent. Considering wd40 is not the best thing in the world, I would suggest using something a bit more friendly to our friends in the water. I can almost guarantee you will get the same results by spraying scent lock on your lures or rubbing them in rotten chicken livers.
Years ago when stink bait came in glass jars, I had one break in my catfishing tackle box. There were a few lures in there as well, and it sure seemed like the lures that came out of that box caught more fish.
Worked out pretty good though. Go sit on a crowded fishing dock, open up and tackle box, and you would pretty much have the dock to yourself. Man that stuff stunk