It may be a little harder to pronounce Cthulhu Onesie than “Monster Onesie”, but that doesn’t mean it isn’t dangerously cool! Have you ever met such a big onesie in your life? From the tentacle beard, to the wings, eyebrows and other details, we’ve thought of everything to make this onesie look like a big guy. Perfect for relaxing at home but also perfect for costume parties! Normally a Cthulhu is found at sea but to relax to the max we do not advise you to take a bath while wearing your suit. If you still intend to do so, we’d love to see the pictures!