I see lots of eye balls where I work and I have to say the cat eye is the most interesting. They are all so different. I think they look like little planets. Someday I'm going to take my camera with me and get several different close ups of cat eyes. These are my own two cats whom were totally "put out" by yet another photography session.
Along those same lines (well, kinda) I purchased a really cute cat postcard that I'm going to frame and put in my art room. Check it out here. The room is ALMOST finished! Once I get moved in I'll post pictures. I'll feel like the most spoiled person on earth :)