give the mob some personality
Make the mob a real something. Let's at least give it a texture. A mesh would be cool too.
We're going to have to do UV mapping either way. If you just want to do a texture first, then we can get away with doing it manually in the code (we have UV mapping code for cubes in the commit history from when we had textured blocks). But it might be better in the long run to just figure out wavefront_obj right off the bat.
Glow/aura effects aren't as horrible as I thought. Let's do a first iteration of a mob without them, but it shouldn't be too bad to add a simple glow.
https://www.opengl.org/discussion_boards/showthread.php/185158-How-to-render-glow-aura-effects-in-3D?p=1262951&posted=1#post1262951