By Brandon Griggs, CNN

We're all doodlers by nature. Give most people a pen, paper and some down time, and they'll fill the margins with the fruits of their imagination.

But imagine if you could wave a pen in the air and create a three-dimensional rendering: A toy, a sculpture, a crude architectural model.

Soon you will. A Boston-based startup, WobbleWorks, has created what they are calling the world's first 3-D printing pen. It's called the 3Doodler, and it's been a sensation on Kickstarter, the crowdfunding site, since it debuted there Tuesday morning. The makers of the 3Doodler set a modest fundraising goal of $30,000; within 48 hours, backers had pledged more than $1.1 million.

"We knew it was a great product. But we didn't expect the response to be this fast," said Daniel Cowen, a spokesman for the gadget, which is still a prototype. "The velocity of the response caught us by surprise. It's phenomenal." FULL POST