FriiSpray is a virtual graffiti system that allows users to spray paint in 3D space using a Wiimote. It was created by Stuart Childs, Richard Garside, and Dave Lynch, and was inspired by artist Johnny Chung Lee's Wiimote whiteboard. The system uses an Optical Body Tracking (OBT) system to track body movement and translate it into spray paint strokes in a virtual 3D environment. Future developments may include opening the system up for collaboration between programmers, artists, and venues.