Five days after launch on Kickstarter, the 3Doodler 3D printing pen boasted over 21,000 backers and $1.9 million in pledges. Their goal was $30,000! What's so special about the 3Doodler? If nothing else, it rivals the lofty infomercial marketing heights of Slap Chop or ShamWow. But let's get something straight--3Doodler is a crafting "pen" not a handheld 3D printing pen (whatever that even means).