Lix the 3-D printing pen. Draw in the air!

The only concern I would have with this pen is getting refill. It looks like it could get pretty pricey.

If you want your own pen, you can contribute to their kickstarter. 28 days left.

lix-21 pen-1

Video:

https://www.kickstarter.com/projects/lix3d/lix-the-smallest-3d-printing-pen-in-the-world/widget/video.html

 

http://lixpen.com/