"Revolution" turns your bike wheel into a rolling stamp. The stamps are 3D printed letters to clip on your wheel with a cable tie. Push the inking roll against the wheel to ink the letters and leave your message on the pavement. You can easily customize and 3D print all the parts you need in the closest Fablab.
"Revolution" is part of streettoolbox.com, a collaborative platform for activists exploring new ways of public expression. You can find more information about the project on http://streettoolbox.wikia.com/wiki/Revolution