Do the tough economic times have you bringing your lunch to work more often than before?  If you're one of those folks who's had that lunch "accidentally" taken by someone else, here's an inspiring design solution to your problem:  Anti-Theft Lunchbags:

Brilliant, don't you think? 

And if you're a legal vendor -- because you knew there had to be some sort of legal angle to this, didn't you -- and you want to engage your customers in a conversation about privacy, data protection, or (yes) even spoilation, I can't imagine a better trade show giveaway.