A process known as 3D Print (aka Rapid Prototyping)
Google those terms to find details and resources
Shown here are examples that I modeled and made used this process, including a caricature of a dog and butterfly made in Hexagon and rendered in Carrara, and a 3D print (figurine) created by a vendor of my model (Z-Corp) - - typically I have the model made by Z-Corp and then have that cast into resin figurines, or whatever material required. I personally prefer figurines that are not full color, those can be done, but I like a bronzed look.
More details on the process here = http://www.artpixelstudios.com/2sculpt.htm