I've seen some anime with really strange concepts behind them before, but I have to say, I think this one takes the cake: Midori no Hibi
For those of you who haven't heard of this anime, it's about this high school kid who's kind of a loner. Everyone thinks he's just a jerk because he's also one of those guys who's really good at fighting, but he's really a softie at heart. Anyway, this girl named Midori has a huge crush on him, but never plucks up the courage to come up and talk to him; and one day, she spontaneously becomes his hand—or his hand becomes her—or something. That's how I understood it from all the stuff they had in Newtype, anyway...
Anybody else find this... a little over the top? ^_^; It seems very... very... very... very... VERY weird to me.