I was playing around in Alibre Design and came up with this thing. I think it might be an eyeball monster. I\'ve included small and big version STLs as well.
I tried to color part of the eye using a blue sharpie but it bled horizontally because of the layers. So I ended up just coloring the whole thing :). Maybe paint would work better?
Small 37.5mm x 34.0mm x 47.1mm tall
Regular 50.0mm x 45.3mm x 62.8mm tall
Large 75.0mm x 67.0mm x 94.1mm tall