I picked up this 2006 Topps Brandon Webb card at the D-Backs Fan Fest last month. At almost 3 ft x 4 ft, it's literally the biggest card in my collection. It must have been hanging up somewhere in the stadium or in one of their offices; it has two holes, one on each side near the top. I'm not sure where it will end up as I don't have the wall space in my man cave and my wife said no to above our bed.
I'd like to thank Larry from My 2008 Topps Set Blog for the early entry pass that allowed me to be able to pick this up at the D-Backs Yard Sale!