Editor's Note: Ryan Cracknell covers sports and entertainment collectibles for The Cardboard Connection and on his personal blog, Trader Cracks. In this special contribution to The Knight's Lance, Cracknell honors the memory of Muppets creator Jim Henson by looking back at Panini's enchanting 1979 Muppets Sticker & Album Collection. Had he still been with us, Jim Henson would’ve turned 75 yesterday. Although he passed…