Pressure Washing...Advertising?

I stumbled upon a website called gomobile.com about a week ago and discovered pressure wash advertising. Now I had never heard of this before, nor could I find any real examples of this online. But what an amazing idea!!! All it costs is cutting a stencil of your message from metal, and then the time to apply it. What an innovative, CHEAP and ecofriendly way to get your message across or create some buzz.

I love guerrilla advertising.

Guerrila Marketing

I see this all the time online and it's fabulous.