We all like to think we've got the world's strongest vagina, but only one woman can say it and actually mean it: Tatiata Kozhevnikova from Russia.
She recently broke the world record by lifting 14 kilograms (31+ lbs) of weights with her vagina. Kozhevnikova does this by (ironically) a set of balls. One is inserted into her vagina with a string hanging out and then she can hook another ball onto the end of it.
Also, not quite sure if that's her in the picture on the link or what, but it's a little random.
Either way, congrats Tatiata!