3Doodler uses 3D printer ink to let you draw 3D objects

The newest one that’s caught our fancy is the 3Doodler.  The pen lets you draw new "objects", for lack of a better phrase.The pen uses the same material as many 3D printers—ABS plastic. Users can draw on surfaces, or if you're feeling especially adventurous, in the air. The duo claims that it is easy to use and you can plug it into a power socket and start drawing stuff within minutes.

As 3Doodler draws, it extrudes heated plastic that quickly cools and solidifies into a strong stable structure. This allows you to build a variety of shapes and items. Most people will instantly be able to trace objects on paper, and after only a few hours of practice, you will be able to make far more intricate objects.