This is TurboRoo, a chihuahua puppy born without front legs. But thanks to a customized cart made with a 3D printer, he can now go wherever he wants. As he grows up, larger carts can be printed for him.
Scientists are still working on this. Right now, they can use 3D printers to create strips of organ tissue using actual cells. But if all goes according to plan, they will soon be able to create entire, actual replacement organs.
A teenager in Kansas made this robotic prosthetic hand for a 3rd-grader born without fingers on one hand. A regular prosthetic hand would have cost around $18,000, but this one that came from a 3D printer is much more affordable.
If Pez isn't really your thing, you can also use a 3D printer to get your face on a chunk of chocolate. It's created using the MIT-created Eat Your Face Machine, which scans your face and then carves the face into chocolate using the printer.
There's only so many actual dinosaur bones in the world, so it's very unlikely you'll ever get to have any of your own. I know, the truth hurts sometimes. But it hurts a lot less when you can print out your own dinosaur skeleton.