Heavily based on the Animatronic eye mechanism posted by Micropuller with several modification, most notably a longer baseplate to accommodate a wider distance between the eyes, concave eyeball irises, wider eyeball screw holes to fit 2-56 ball links, and a baseplate holder to prop up the mechanism on a flat surface.
More info and build details available at https://hackaday.io/project/20187-animatronic-et-puppet
Shoutout to Venomouse for a few file updates!
The author remixed this model. Imported from Thingiverse.
Adjustments to the baseplate and eyeballs