You can do that with anyone's photos at elfyourself.com. There are about 8 other dances too. We have fun doing it with my family.
In a REAL office party, they sit on the copier and take a picture of their ass. Then they get fired the next day!
This is NSFW due to all the cussing: [video=youtube;WsBB93IqJkE]http://www.youtube.com/watch?v=WsBB93IqJkE[/video]