Cool! That gets me thinking, I wonder what some good designs that would fit into an envelope are? Flat things are infinitely more shippable (especially across borders) than bulky ones. Then again, what use is 3D printing if you're just printing 2D items? But they wouldn't really be 2D, just less than say 3mm thick. What about something like a ruler, could it do that? Or along those lines, one of those stencil things, with letters and shapes, for tracing onto paper? I'm sure there are all sorts of things that aren't very thick. It must be fun to be able to form things yourself. Almost like a magical ability!