I would love to be the guy who’s job it is to drink all the beer out of these bottles before they’re used to make the Beer Bottle Organ. The organ actually works and the tone produced is based on the amount of liquid left within each bottle. The manufacturer of these custom organs uses mineral oil to prevent evaporation. The organs take 2 months to build and the sound is produced by blowing air over the tops of the bottles. Best song to play on the beer bottle organ: 99 bottles of beer, natch.