Printing plastic bunnies is all very interesting but the other news item your link takes us to about the human race diversifying caught my eye even more ..
Indeed. It already happened....
As for metal 3D printing... perhaps someone can come up with a nice polar mount design that we can "print" out amongs ourselves...?
I do occasionally wonder what the weirdest thing a person has printed out with a 3D printer, whether metal, plastic or the protein re-sequencer...
What about your Twig?Anyone seen my Rubber Duck?