Saw a site a while back selling peircings. Tounge peircings with sassy text on them like "i swallow", vibrating tounge rings, nipple peircings, etc. These types of things may sell well. Not sure if they want to advertise on adult sites?
just did a google:
try these guys
http://www.bodycandy.com/ they have an affiliate program through cj.
I would give you my commission junction referal link but the bastards dont give out referal links till you perform at a certain level (and its high)