Family Tree has published a limited edition series of 2-color silkscreen Monster Friends posters [12x18 is a pretty adorable size to call a poster, but hey]. It includes the Loch Ness Monster, Sasquatch AND Yeti, and the Kraken.
Only for some reason, Alex Pearson did the Pirates of the Caribbean Kraken, not Clash of the Titans Kraken. Back when I was a boy, the Kraken was a giant stop-action, multi-armed, mer-gorilla, not some CG Disney squid. Kids these days don't know how easy they got it.
Monster Friends posters are printed in an edition of 100, $25 ea/, or all 4/$80 [familytreedesign.net via dt reader rolf]