Nothing says: "Dear god stop raping me" Like an inverse condom with blades on the inside. I first learned about this a few years ago and decided it deserved a comeback on the internet circle. Supposedly the only way to get it removed is to go to a hospital and get operated on. The website gives a lot of really good literature and examples of use.

My favorite use is: "Use it when you go out drinking!" Because everyone loves the idea of "OH SWEET, I'm about to score!" followed by the screams of "Dear GOD my penis is bleeding!" Lets hope the drunk chick is very aware of what lives in their vagina.

http://www.rapestop.net for the official site.