Wearable Electronics Class
$1 DIY Conductive Ink and Paint from Fire! (non toxic, homemade, cheap)
https://en.wikipedia.org/wiki/Carbon_fibers , The electrical properties of carbon fiber as the heating is very suitable.
very useful and pratical, if you want you can also use carbon fire yarn
very useful and pratical, if you want you can also carbon fibre yarn
Synthesizing Conductive Nylon
rSkin - Open Source Robot Skin