Actually, I sell a product through my parties that are decorative and keep your nipples hard at the same time. They are simply a string of "pearls" on a soft nylon rope with little nooses that tighten around your nipples and keep the blood rushed to them, sort of like a cock ring does to a penis. And on top of that, the dangling pearls feel sexy with a slight pull that is very erotic to feel and to see. Gee, that sounded like a commercial didn't it? I didn't mean for it to, sorry! But that's my contribution to the nipple caper.....OH! I just remembered, I have another product called nipple nibblers which makes your nipples hard too. I won't give you a commercial on that one though.