LIX 3D Pen

Credit: www.kickstarter.com

File this under tech I don't understand but must absolutely have. The LIX 3D pen is the latest in the world of 3D printing pens which I had no idea was a thing. It's powered by USB and it works a lot like a hot glue gun melting plastic which is fed from behind. When the melted plastic is extruded from the tip, it cools and you can literally draw on air. You can learn more at their kickstarter page which has already been extremely funded. Looks like I'm not the only person impressed by this. And you really have to see it to believe it.