There are many free websites where you can view and download 3D models to print for yourself. These are links to the 3 sites I have found to be most useful.

http://www.thingiverse.com/

This is a freely accessible site that is probably the first stop for people getting started with 3D printing.

The following 2 sites require free signup to visit, but they are “curated” sites, meaning the 3D files that people upload are reviewed prior to publishing.

https://pinshape.com/

https://cults3d.com/

Last Update: 17 Jan 2017