LIke they said,
Go to "everything else" and then "mature audiences" this link might work:
http://everythingelse.listings.ebay....sortpropertyZ2
I keep a shortcut in my "favorites" in my "MY Ebay" area. You create account and Credit card verify age (no charge) and then login to your account and then go to that area. Kind of a pain, but well worth it. I have purchased adult toys, etc. and no, they weren't "used". I wouldn't worry about getting "used" stuff. You can research what you are looking for on regular retail (high priced) websites and catalogs, THEN go to ebay to find these exact same items for MUCH LESS money typically. Works for me every time.
Again, I don't use it to try to decide what to buy, because a lot of it is crap. I figure out what I want first and then buy it on ebay.