They say that the Great Wall of China is the only man made object visible from space. WRONG! Check this out from Guardian Unlimited (look at the grass, left hand side, close to the path).
Schoolyard penis seen from space
Stephen is Director and founder of Collabor8now Ltd, an organization focussed on developing collaborative environments (e.g. Communities of Practice) and the integration of knowledge management tools and processes to support business improvement. He is a certified knowledge manager with the Knowledge Management Institute (KMI) and the author of several published research papers on collaborative behaviours and information technology.
How funny, I just wrote about companies doing this sort of large scale advertising (see http://collaborator.wordpress.com/2007/02/07/saying-it-big/ ), where I was questioning its effectiveness as an advertising approach.
Your story definitely shows that it’s cost effective and accessible to the little guy!