I love collecting signatures on baseballs...and I have a few non-baseball ones...here are a few:
Pete Docter - Pixar Artist
Jeff Pidgeon - Pixar Artist
Stan Lee
Eugene Kranz - Apollo 13 Flight Director
Fred Haise - Apollo 13 Lunar Module Pilot
John Glenn
Michael Jordan - Compulsive Gambler
George Mitchell - "The Mitchell Report"
This is a little different, but each year we go to Disney and we try to get a baseball signed by the characters as a keepsake:
