I'll admit it, this was simply swiped from Ectomo, which is sort of like collecting low-hanging fruit for cephalopod-centric ephemera. But look how amazing it is!! Chicago artist Phineas X. Jones has made prints of a feudal Japanese octopus!
And that's only the tip of the iceberg of the wonderfully tentacley things you'll find on his screen-print site. Witness the improbable Octophant!
Alas, if only it weren't sold out. Find even more exciting imagery from Phineas on Flickr.