Purple Cow and a Red Urinal
Meike van Schijndel probably isn't going to start selling bathroom fixtures any time soon. But a quick look at her site, Welcome to Bathroom Mania! sure makes it seem that way.
This is funny and clever and outrageous and it demonstrates her talent and drive. In fact, most entrepreneurs who say they don't have the resources to launch their purple cow (and are worried that someone will steal their idea) can learn a big lesson here. Her idea is likely to catch on (if the interest is any indication) which means that someone will either license it or rip her off. Either way, if her idea spreads, she wins, because she's the undisputed source of an ideavirus.
(Thanks to the Viral Marketing Blog for the tip.)