This is a quick rig that I made of Septiceye Sam, JackSepticEye's 'mascot'.
HOW TO USE RIG:
To move the nerve, or 'tail', select the bone at the end of the tail (The one disconnected from the mesh) & move it, I made a simple IK movement system so the tail will aim at where the bone is. (I also added an extra IK bone above the middle of the nerve, just so you can tweak the rotations a bit.)
To move the eyeball itself, just move the empty "Eye_Target" object to where you want it to look. It may act a bit wonky if you move it behind the eye, however, so be careful with that
That's it! A very simple rig, but I found that it was something someone might want.