My friend Maggie Andrews found a piece of art work printed onto a plywood tablet which was left in her bike basket on the street. An artist/designer named Aaron Lawrence left it for someone to find, and since then it has been roaming the streets of many cities. It's a really fun way to share your art that is more dynamic and surprising than hanging it in a gallery. The city should constantly surprise us with gifts like this!
I think this might be Aaron's website. It will be fun to see where this work shows up next!