I set up my Kinect video superimposition software at a friend's party, and invited people to play with it. Most of the good stuff never got recorded, but here are a couple of 3D self-superimpositions:
My friend on the right apparently needed to send a picture of herself kissing a girl to some guy, so I set it up so she could make out with herself. People were "surprisingly" willing to grope the augmented-reality-captured models of their friends. Who knew...