Invisalign is currently using 3D printers to make their custom transparent braces to straighten teeth. Other companies are using them to make molds for chocolate and Cornell University created a human shaped ear. That last item would make a lot of sense if you lost part of your ear.
The 3D printers are becoming affordable starting at $400 but can go as high as $500,000 depending on your needs. Of course, last month’s report that someone was able to make a working handgun was unsettling news that draws attention to the implications of this advance technology.