Pink Tentacle posted some fantastic illustrations "of a few creatures profiled in Yōkai Jiten (“Yōkai Encyclopedia”), an informative guide to 100 of Japan’s traditional monsters, written and illustrated by manga artist Shigeru Mizuki in 1981."

This one of the Umi-bōzu is my favorite. I'd hang this image up in my living room.

This looks like a snapshot out of one of Steve Ballmer's recurring nightmares.