Another simple rig for Maya. This one is great for practicing eye and brow animation. There's a lot that you can do to change the spacing, size, and shape of the eyes and brows, so download it and check out the ReadMe for usage notes.
Here's a very quick test I did with the rig to see how it animates. You have to be careful to maintain volume in the brows as you pose them, but it's a fun rig, if I do say so myself. Enjoy!