Do you mean snake bites... or snake bite kits, the kind that extract venom?

If the former, I'd try to avoid it as a solution, whether or not it actually works, it's damned hard to train the snakes to bite you exactly where you want.

If you mean snake bite kits, I would suggest you look into a pair of Sawyer Extractors. They are visciously effective, producing substantial suction... and you can observe through the clear plastic extractor cups, whereas the rubber suction devices are opaque.

http://www.bdsmlibrary.com/forums/at...6&d=1194808472

http://www.bdsmlibrary.com/forums/at...7&d=1194808472