Yup, we’re talking about a keyboard that has beer cans instead of keys. All you have to do to use it is to gently touch a beer can. It behaves exactly as a regular keyboard (e.g. you can plug it in any computer or laptop). For the 2012 Webstock conference we have attached it to Raspberry PI computer and a large plasma for the Staropramen contest.
(feel free to use these under Creative Commons Share Alike, CC BY-SA)