Fascinating campaign from Zimbabwe highlighting how the current regime has devalued the Zimbabwean currency by using it to wallpaper a billboard.

(Image taken from here on Flickr.)

They've been mindful to make sure this idea is spreadable - so it's not just a billboard somewhere in Africa. They've uploaded the "making of" images to Flickr. And do doubt found some ways to seed it into the blogosphere.

I found out about this here on the Pop!Tech blog.