Tap World: Shoes interface for real world interaction (developed here):
"Tap World" is a pair of shoes interface which enables users to interact with real world objects. (...) "Smart Tap Shoes", which enables us to manipulate various real world apparatuses by using shoes when user's hands are occupied with another task. "Smart Tap Shoes" is composed of several sensors, Laptop PC, and infrared ray transmitters. (...) Smart Tap Shoes has tap switches behind the shoes. So user can control the objects only tap a floor with Smart Tap Shoes. User also can operate by turning shoe around the heel by rotate sensors in the heel. If he wants to turn up/down TV's volume, it would be the way of easy to use. When user did the action, Smart Tap Shoes transmitted infrared ray to control the objects. In this picture, he switched on the light by tap a floor.
Why do I blog this? this project is quite old but curious enough to land here; we'll have to pay attention to where our shoes are (by googling them) before tuning them to control our set-top boxes!