For years, the star of the arts and crafts scene has been the hot-glue gun. It would appear, though, that the venerable hot-glue gun has been bested by a new, more audacious smoking-hot tool. Meet the 3Doodler, a pen that lets people draw three-dimensional objects. It is, in essence, a novel play on 3D printing technology. The 3Doodler does away with the whole precision printing idea. It's a bulky pen that takes a thread of plastic in one end, melts it, and squirts a stream of plastic out the other end. Instead of drawing on paper, people more or less draw in thin air and have the objects in their head appear in real life. It's magical stuff. For the moment, the 3Doodler is a Kickstarter project, with the first production units promised to arrive around September.