(Scorpion, True Blood, Terminator 2, Gangster Squad...)
Books signed by Famous People
who didn't write them.
I believe each is one of a kind although when I asked Kathy Lee Gifford if she had ever signed a copy of WAR & PEACE before she was a bit cagey so no guarantees.
I also asked Henry Kissinger to sign a basketball
but he wouldn't do it.