Peter Blasser has a very unique website where you can download and print paper “circuit boards.” These circuits are for building music-making projects—sans the more “conventional” copper-clad board substratum. Just print the circuit board, lay out the components, and wire the traces. How about adding some conductive paint and starting a revolution in circuit building? Try this electrically conductive “wire glue” for making your pPCB connections. This combination could be an interesting method for introducing kids to electronics without the need of purchasing a classroom’s worth of soldering irons. If you try pPCB + wire glue, please post your results in our comments section.