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. You can go to EBay and type" 3D printing pen" in the search bar, and you will get the results.