Hello everyone. Has anyone of you ever heard of a thing called 3D printing pen? I was surfing internet looking for presents, and I have found this interesting thing on EBay.

The idea is that it looks like a pen, but you can draw with it like with a 3D printer (up, down and etc). Has anyone had or have one? Is it worth trying? Please let me know what you think.

Here are the listings: http://www.ebay.com/sch/i.html?_from...Text=&_sacat=0