Using the same plastic and technology as a 3D printer, you can draw in 3D!
Get creative with your filament: use conductive filament to draw a working circuit, or inject PLA into a broken part from a 3D printer. Push ABS into a cracked bumper, or weld printed parts together.
See it in action here
Buy here for $99 – $129
or buy the new 3doodler 2.0 here for $100.