Physical interaction design DH2400

http://plusea.at/index.php
Here is a very interesting blog from Hannah Perner-Wilson, with a great DIY section. With almost only conductive thread and neoprene she teaches you how to create your own bend sensors, pressure sensors, simple buttons and so on.

There is a lot of videos and explanations, and all her code is available for free (even the Processing applications she uses to demonstrate her sensors).


A picture of a home made bend sensor:



A video of simple fabric buttons: