What is it? Exactly that. A guitar amp built inside an empty keg of Heineken draught beer. It boasts 20 watts of pure beer-power, works with guitar, bass and MP3 players, plugs into any standard power outlet and is all yours (via Etsy) for $119.99. Our favourite feature is the volume control, cleverly placed in the centre of the famous Heineken red star.
The amp's dedicated inventor had this to say: "My liver suffered to bring you this awesome amp, don't worry... the beer went to a good cause!" For any aspiring under-age DIYers out there, try the Coconut amp… it'll taste better. Promise.