I'm aware of shapeways, and I think they're awesome. But you'll notice they still require you to design the part in some sort of CAD program. Most of the people

I'm aware of shapeways, and I think they're awesome. But you'll notice they still require you to design the part in some sort of CAD program. Most of the people visiting Amazon looking to replace a broken part or make a new toy for their kid aren't going to know how to use Blender.