Hard Rock Cafe Cologne DA PINCI Guitar This is the rarest pin in my collection... cause this is a Limited Edition 1 (!!!) Pin. Only one of these pins were made in 2006 for the Hard Rock Cafe Cologne DA PINCI event. It is the SCORPIONS Guitar that hangs on the wall of HRC Cologne. The pin was auctioned off for charity during the event - and I was the high bidder :-) This means that I am the only collector who has EVERY single pin of HRC Cologne... and I am VERY proud of it...