Like a teeny flappy tail? I remember now my sons looked like that for ages. Then it went dark and manky like drying umbilical cord and that's when we went to the doctor.
Nah like a.. well.. like a tip of a penis.. LOL

PO5 - yeah it sort of looks like she has one poking out from between the folds of her belly button.. very weird!!!!

Hope its not to do with cutting the cord, cos I did that and I would hate to be the one to blame for her "oddity"