Lately I’ve been interested in e-textiles and fabric sensor technology. For an example of something I find infinitely fascinating, take a look at this DIY fabric bend sensor. (Via talk2myshirt, the best named blog evar.)
In that project, many of the conductive textile materials were originally designed (or at least marketed) for electrostatic/electromagnetic shielding applications. Hannah Perner-Wilson, who invented this bend sensor, recommends buying materials from lessemf.com. This web site appears to be catering to some tin foil hat-wearing clientelle who would buy microwave-shielded drapes or radio wave blocking baby blankets. Great.