Gizmodo recently released an article about Tuned Pale Ale. The small batch pale ale was released in bottle that feature a musical scale down the side of its labels. Each notch on the label, designed by Chris Mufalli, coordinates with a musical note. When the beer level matches a notch, a different note can be played.
To problem is, once you drink past a note, you can no longer play it. And unless you open several bottles and figure out how play all them at once, you will need a band of friends just to play a tune. Regardless, the concept is fun and definitely makes for a memorable party game.
Unfortunately, the beer no longer appears to be in production.