This may look like just a normal marker, but it’s much more than that. However using the conductive properties of silver found in the ink, you can turn your doodles into a functioning electrical circuit. 

This pen by Tokyo-based startup AgIC can transmit electricity with its silver ink. The name AgIC is a nod to the chemical system for silver, Ag, along with the initials IC, which stand for “Ink Circuit”. The idea sprang into life after a Kickstarter campaign, which was successfully funded last year.

You can see it in action in this cool video by Japanese infrastructure company Kandenko. A tiny 3D miniature paper town comes to life as the pen simultaneously conducts electricity as a person draws lines. The pen is available for sale on Amazon for $15.

It looks and feels just like a normal marker pen. Aside from that, it’s a great way to get kids interested in electronics or even just being creative. Although bear in mind, they can only guarantee it works if you also buy their specialized paper.

Source: http://www.boredpanda.com/silver-ink-circuit-pen-future-with-bright-lights-agic-kandenko/