Well, it's been a long time coming, but here it is. A pen that lets you draw in 3D! This is the world’s first 3D printing pen the ”3Doodler”.

Peter Dilworth, Co-Founder & CEO of WobbleWorks says, "We wanted to design a 3D printing device that could be used within minutes,without needing any technical knowledge, software or computers. We also wanted it to be affordable as well as fun, so that anyone could 3Doodle!"

I am really interested in 3D printing and rapid prototyping, so this is an obvious fun step to that. Who wants to 3Doodle , this guy right here.
How does it work?  As you draw, plastic comes out of the pen, is cooled by an integrated fan, and solidifies right in front of you. You can draw on any surface and lift it up into the air to create your own 3D objects. Check out the video, and prepare to be amazed!