Problem is, there aren't any of those. The nearest anybody seems to have found is printing gun parts, and that's only because the parts in question are weirdly regulated by the US government.
No, it seems there are at least a few good applications of 3D printing like the GP talked about such as 3D printed body part replacements like titanium jawbones. They are apparently cheaper than the alternatives, can be custom shaped to the patient, and be made faster than the alternatives. As materials improve the integration into the body is expected to improve as well. I agree though the summary of this one was bad. This was a good learning exercise and it was improperly changed to "Working" making it into something it wasn't. There's nothing wrong with learning something new, but making it out to be something it isn't is not so good.