Everyone who has ridden a bike knows that your tire will leave a mark when you go through a puddle. It is always fun to then zigzag for a few meters and take control of this mark. "Revolution" starts from this playful experiment but transform the trails in an actual message you can choose. It consists of a thin 3d printed plate with a series of grooves that will fill with water and then stamp it on the pavement. The plate is then converted in a zip tie to easily mount it on the tire. By printing a number of these at home or in a fab lab, you can customize the message your bike will leave on the ground. See how it works here http://vimeo.com/97783676 ! Visit http://streettoolbox.com/wiki/Revolution to get more protest weapons!