Crooked Monkey did a line of Jersey Shore inspired tees -- a lot of them are still available at the website (this was not intended to be a plug). One of the few I made might be picked up by Urban Outfitters. I think it was, but not 100% sure.
BTW, here's a picture of Micha (Crooked Monkey owner/co-founder) wearing the tee when he crashed a party that Michaele Salahi threw...Ironic, I know. It doesn't feel good to have your party crashed, does it, Mrs. Salahi?