I'll confess to being a little dry tonight in the idea department, but even so it wasn't too hard to track down something good. Namely, vintage animated beer commercials.
Here's a Claymation one for Ballantine beer.
This one has bears having a pie fight for God knows what reason.
Best of all, here are Bob and Ray doing one of their Bert & Harry Piel ads for Piels beer. This was a campaign that actually put Piels out of business - so many loved the ads that they tried the beer, and unfortunately the beer was pretty lousy.
Bonus! If it's modern funny beer ads you want, here are the folks at Red Stripe (who make the best beer ads in the world hands down) topping themselves with an infomercial.