Demon Monkey shooter is an FPS that uses a squash racket as its main input device, no strings attached (pun intended). The racket's movements are tracked using a Vicon motion capture system. This is quite a step up from the Wiimote. And yes, we can probably do tennis too.
HML Alumnus Connor Dickie explaining Interaxon's Brain-controlled CN Tower, Niagara Falls and House of Commons.
Lab members are busy these days playing e-cardboard strategy games, like this electronic version of the popular game Settler's of Catan. Created by Mike Rooke, the game simulates a future in which OLED or FOLED displays cover board game tiles without bezels. This allows not just for interactive computer game graphics on compound cardboard screens, but also for the use of tangible interaction techniques to affect the state of gameplay.
M. Rooke and R. Vertegaal. Physics on Display: Tangible Graphics on Hexagonal Bezel-less Screens. In Proceedings of TEI 2010. Cambridge, MA: ACM Press, 2010. Video (MP4).
DisplayObjects, by Eric Akaoka, is an organic user interface for creating computer displays on arbitrary surfaces, such as pieces of model cardboard or blocks of styrofoam. It allows easy prototyping of hardware gadgets through software/hardware fusion. The system tracks the location of the model, as well as the finger, via markers tracked through computer vision, and renders a 3D software model of the object back onto the hardware model through projection.
Akaoka, E., Ginn, T. and R. Vertegaal. DisplayObjects: Prototyping Functional Physical Interfaces on 3D Styrofoam, Paper or Cardboard Models. In Proceedings of TEI 2010. Cambridge, MA: ACM Press, 2010.
Akaoka, E. and Vertegaal, R. 2009. DisplayObjects: functional prototyping on real objects. In Proceedings of the 27th international Conference Extended Abstracts on Human Factors in Computing Systems (Boston, MA, USA, April 04 - 09, 2009). CHI EA '09. ACM, New York, NY, 3507-3508 Video (MOV)