I have Hulk Hogans autograph. (And a few other wrestlers...I was young).
Not something I own and sort of a "claim to fame" but my father is the tattoo artist that done some of the work of the Colts Fan and forum member (name is escaping me) who was getting the Championship Team autographs tattooed on his body. They featured him getting Bob Sanders autograph tattooed during the SuperBowl coverage when we played the Saints. My Dad done that one.