The official store sells everything inspired by their magical movies and characters. An adult T-shirt can cost anything from $19.99 to $79.99, but a few guests have revealed how they got one for free.

Mr. Smiley claims he'll send you "a free smiley face T-shirt after 5 of your friends join," but he doesn't explain exactly what your friends have to "join," or what their "joining" entails.

While anyone can empathize with the futility of trying to catch a T-shirt launched from a slingshot or potato gun, it’s hard to feel too bad for McCartney who had another fantastic year: Not ...