I’ve always been partial to the "#include <beer.h>" pint glasses from ThinkGeek. It’s the nerd in me, and unless you’ve done any computer programming, you probably won’t totally get the reference, but still:

Our Microbrew glass will hold 12 ounces of fermented yeast and malted barley. Ironically, beer is not included in our include beer glass. Oh well.

What’s not to like? Singly, they’re $5.99; or $16.99 for four.