Ballpoint Pen Draws Electronic Circuits With Conductive Ink [Video]
Instead of regular ink, Circuit Scribe uses conductive silver allowing you to instantly create a fully functioning circuit.
Circuit Scribe is a rollerball pen that uses a silver conductive ink to let you create fully functioning circuits as fast as you can can draw, making it cheaper, faster, and easier to test out electronics and prototype concepts.
Developed by Electroninks Incorporated, a company originally part of a University of Illinois research lap, Circuit Scribe tries to make the process as easy as possible. No wires, no boards, no soldering; all you need is a sketch and you can begin tinkering with nothing more than a coin battery and an LED.