Human Antenna Carpet. A carpet made of looms from conductive thread.
By standing on it, your body acts as an antenna. The carpet picks up the radio waves, which your body receives and makes them hearable. When walking on the carpet you can tune it to a certain frequency, like the tuner of a radio.

See video demonstration below...

[vimeo]http://vimeo.com/5334661[/vimeo]