i had a friend that had an old fridge that he kept a keg inside of. he had the tap coming out of the door and the tap was wired to his stereo. everytime time we would pour a beer, it was the sound of pregame.
I've used them for my golf tournaments for signs. They wrapped an impala to advertise with and it came out pretty nice. I'm going to have a large ice chest wrapped to look like tiger stadium on the inside and outside.