Maybe you can do something like a golden ticket type giveaway (if it hasn't been done already). Have like 200 boxes/cases that you guys choose available for sale at asking price under blowouts specials. Buying one of those boxes is an entry for this promotion, once all of the boxes/cases for this promotion is sold, then you guys will send out the boxes/case, but 10-20 of them will have a golden ticket which puts you in a 10-20 person random that will give-away a case/box/giftcard.
Similar to halloween/cornucopia but with a twist, letting us choose the boxes/cases that you guys made availabe for the promotion but a chance at winning a giveaway. Just an idea.