Wow! Just ran into this on Kickstarter and it caught my attention right away. Just check it out:
“3Doodler is the world’s first and only 3D Printing Pen. Using ABS plastic (the material used by many 3D printers), 3Doodler draws in the air or on surfaces. It’s compact and easy to use, and requires no software or computers. You just plug it into a power socket and can start drawing anything within minutes.”
Would definitively love to give a try to one of them. What would you use it for?