eBeer -- idea for thank you's

Something occurred to me today, seeing a note from a user offering a beer for help proffered, but of course, with the realization it would not likely come to fruition.

Wouldn’t it be cool to have an online buy-a-beer option: eBeer?

Other possibilities: eBrew, yahBrew, BOL (Beer On-Line), Brew-gle, netBeer-o

Have it be a printable coupon or mailed coupon or emailed to a bar or something like that and redeemable at a bar (that takes care of any concerns about under-age drinking).