Now this is nifty! "We used Circuit Scribe and the Silhouette Cameo Pen Plotter to print an Arduino on paper!"
The creators are current doing a KickStarter:
Circuit Scribe is a rollerball pen that writes with conductive silver ink. It makes creating circuits as easy as doodling.
Here's a circuit interfaced with the Arduino Mega:
Anyone else excited about this?
Cheers,
Drew