Sometimes, designers choose to fold two related things with one square of paper. For instance, a previous Crease Pattern Challenge was a dude on a horse made out of the same square. Brian Chan made a Kraken (squid type) eating a boat, all with the same sheet. Similarly, Challenge #9 , by Go Kinoshita, is a sperm whale fighting a giant squid, which he titles, “A Sperm Whale vs. A Giant Squid”.
First off, I had apparently made one of these and lost it after only taking one picture. That’s the purple and blue one. I wasn’t going to put that one’s picture here, but I think it’s interesting how much differently they came out. I traced the crease pattern on that one, so it should be more accurate. The tentacles and whale’s fins are more like the original, but the whale’s missing some face.

Upside down. Also, hey! I can do captions!
The second version has the appropriate amount of whale face and the whale’s open maw that you really can’t see very well. However, it’s missing one set of tentacles and the fins are slightly different. You can also tell that I had a lot of trouble on the whale, so he looks pretty banged up. It looks more like “head on collision” than “vs.” to me.
One of Kinoshita’s other cool designs is a western style Dragon that’s diagrammed in Origami Tanteidan Convention Book 19. As usual, I didn’t use paper big enough to do it justice. He’s a pretty nice dragon, with different coloured wings and feet claws and lots of articulated features. The wings kept angling upward for mine.
Also, since it was mentioned earlier, I did fold Brian Chan’s Attack of the Kraken awhile ago, from the crease pattern on his website. I used bigger paper to make sure I wouldn’t mess up too badly, but that actually made the prow too limp. Then I went off the rails a bit.
Instead of making it a straight up spiky prow, I made it into a figurehead of the Chimera from Greek mythology, with the goat, snake, and lion heads. I don’t know why. Putting an omen of natural disasters, including specifically shipwrecks, on the prow of a ship is probably a bad idea. This ship was just asking for kraken attacks.