Lusha and May created a “Text-Mat”. This surface can allow the user to write and send messages using one’s feet. This text-mat is designed to send secret messages during meetings or classes. The design utilizes conductive fabric and thread, as well as a flora-board. The program contains 7 preset sentences. The user can press a button to select the appropriate sentence and then a final button to send.
Enjoy the video:
Please see the instructables: http://www.instructables.com/id/Texting-mat/