Adding a third dimension to sketches with a 3D printing pen can bring a whole new layer of fun to doodling. But as we discovered for ourselves last year, it's not as easy as company reps make it look.

3D printing pen manufacturer Scribbler has taken to the Kickstarter crowdfunding website this week to raise the $16,000 it requires to take its new Scribbler DUO 3D printing pen into production. As ...