Can you provide a source that states that the winners received moonmen?  Because I checked the Official Rules link you provided and the "Grand Prize" section mentions nothing about a moonman, only promo spots and exposure on MTV2.  The Pepsi Rock Band Video category's official rules, on the other hand, do explicitly mention the moonmen: "GRAND PRIZE: One (1) Grand Prize will be awarded to each registered Band Member (Entrant and up to nine (9) registered Band Members) of the Grand Prize Winning Video consisting of a trip to the 2009 MTV Video Music Awards and receipt of a MTV VMA Moonman statue (the "Grand Prize")." .  A source proving that the winners get a moonman should effectively prove this was a category and not just a contest.