Beer Can Regatta...

The Beer Can Regatta is an annual event at Min...  ...Northern Territory, Australia. The participating boats are all made of beer or soda cans! The highlight...  ...earance of Extravacans, an enormous motor-powered boat constructed of 30,000 cans! A new category was cr...  ...oat," which it won as the only entry...

http://www.neatorama.com/2012/07/16/beer-can-regatta/