Here’s a USB-powered LED paper circuit friend to plug into your laptop and get you started using conductive ink. Bare Conductive shares an Instructable:

In this tutorial we’ll be showing you how to make a cardboard USB Mouse with an LED nose that lights up when plugged into a USB port!

At Bare Conductive, we love playing around with Paper Circuitry and enjoy sharing fun projects that we, or our community members have come up with so make sure you check out our website for more great projects!