I've been finding nautilus items very difficult to track down (been casting around for something nautilan for my dad); anyone else have this problem? The other cephs seem to be much more marketable for some reason - maybe it's harder to put a cute/smiling face on a nautilus than an octo. Go figure.
I think that at least part of the problem is that the public would rather perceive nautiluses as pretty seashells than tentacled beasties. Personally, as much as I love octopuses, I would like to see the other cephalopods more equally represented!