The first place I saw this stuff was a presentation by one of the people behind Chibitronics. Along with copper tape really useful for building up circuits on p

The first place I saw this stuff was a presentation by one of the people behind Chibitronics. Along with copper tape really useful for building up circuits on paper. Not sure if they still use it in any of the products but still pretty cool: https://chibitronics.com https://chibitronics.com