I've just put on ebay an autographed tour program (incl. Freddie) from my own collection... it's been hidden somewhere down in my drawer for years so I'm sure somebody else will enjoy it more :-)
6 autographs total (Brian has signed it twice + Tony Hadley is there as a bonus :-) link
(And I also bought a "new" car so I need some money... :-) link
This is a fine example why the fan club certificate is absolutely, absolutely worthless (image taken from one current ebay auction): link
I can't believe anybody can authenticate this fake shit...