This is a test to see how it might be done in an automata.
The left right is controlled by a pivoting tube (cut from a ball point pen), and within it is a cable that controls up and down
the round casing limits the degree of left/right movement of the eyes when in an up or down position, and limits up and down, when in a left or right position. This means the casing should be square not circular
Video showing front and back of "head"
Cutting eyeballsObviously, why make the eys, when you can cut some off old deodorants. (Keeping old deodorants isn't weird is it?
...and fitting control rods in the back