I have to post this one because it is flat out ridiculous:

There following four obviously fake U2 autographs are all being sold right now by the same seller.  Not only are they clearly forgeries, they all look completely different.  I mean. no remote resemblance at all.  Really?  This doesn't set off the slightest alarm? 

http://www.ebay.com/itm/U2-AUTOGRAPHED-WAR-LP-JACKET-WITH-COA-SIGNE...

http://www.ebay.com/itm/U2-AUTOGRAPHED-OCTOBER-ALBUM-FRAMED-WITH-CO...

http://www.ebay.com/itm/U2-AUTOGRAPHED-GRAMMY-PHOTO-SIGNED-BY-ALL-M...

http://www.ebay.com/itm/U2-AUTOGRAPHED-GUITAR-BONO-LARRY-MULLENS-TH...