The nautilus is one of those amazing creatures both strange and beautiful. With a spiral shell that seems to be a natural manifestation of the golden mean. And when interpreted by Mitsuru Nikaido, this cephalopod takes on an even more usual form, as Mitsuru builds mechanical versions of living creatures. Aside from the many curved sections, and the sprouting tentacles, my favorite detail would have to be the Hero Factory chest piece for eyes.