Inkworks' Firefly:   The Complete Collection trading cards, released last week, are sold out from the manufacturer (although some distributors may still have stock). 

The 72-card set, based on the short-lived Joss Whedon sci-fi series, includes 11 different autograph cards, inserted at a one per box ratio.  Six foil cards, depicting the battle of Serenity are inserted at a ratio of 1:17 packs. 

Three different 'Partners' cards are inserted as box loaders, and one'Outlaws' card is inserted as a case loader.