We present Graffiti Fur, a display technology that utilizes the phenomenon of the change in shading properties of fur as the fibers are raised or flattened. Users can erase drawings by first flattening the fur surface through sweeping by hand in the fiber's growth direction. Then, users can raise the fibers by moving fingers in the opposite direction, which create lines of drawing. These material properties are commonly found in various items such as carpets in our living environments. We demonstrate our concept by developing three different devices to draw patterns on a "fur display" utilizing this phenomenon: a roller device, a pen device, and a pressure projection device. Graffiti Fur can turn common objects in our environment into re-writable canvas without requiring or creating any non-reversible modifications. In addition, Graffiti Fur can present large-scale images without glare, and the created images require no maintenance costs.
