onshape cad available here

For best looking results I print the eyes with the outside facing up, and supports on the build plate.

Couldn't find any models of safety eyes so I had to make my own. They are mainly molded after a 12mm eye, with a 8mm and 10mm near by to help calculate the diameter to height ratio of the eye. The clips I didn't spend as much time getting them to scale perfectly, and they aren't identical to the store bought ones, they were heavily altered to print better and flex well enough when made of solid PLA; so I only included the 8mm, 12mm, and 16mm as the small, medium, and large clips.