What about something like a random number drawing? Maybe reply to the post with a number between 1 and something, then the winner is chosen at a later specified time/date by random number generator.I did give that idea a thought actually. Then I thought that it would lead to how fast folks could google the question....lol. Then we would be adding an extra step.
Just trying to think of ways to make it more likely to spread the love around and get more people involved at the same time--especially the folks who may read the forums at odd hours of the day/night. Plus, maybe that way you could shake out a few more lurkers and/or get more people to jump in from instagram.
As for myself, I don't mind if I never win. I have more than enough beans to pop--including way more packs of your beans than I should admit to not having popped yet.