Abstract: Computer-based methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for presenting a first virtual art canvas at a graphical user interface; receiving instructions from a remote control unit to apply one or more markings to the virtual art canvas, where the one or more markings are applied according to the remote control unit's movements relative to a stationary sensor; and displaying one or more indicators on the virtual canvas to guide a user's movement of the remote control unit to create a virtual piece of art on the first virtual art canvas based, at least in part, on movements of the remote control unit.