I just came across this very cool site called Papergirl San Francisco. It’s part of a larger “movement” that was started in Berlin. Their mission is “to bring art to our community in a new, exciting and participatory way; directly and freely by bicycle. We’re into the idea of facilitating people being generous with each other, random acts of kindness, and sharing ideas and energy with strangers.” Gotta love the mission and the fun, retro graphics (bicycle and stamp, in particular).
Art via bicycle! What more could you want?