Swapnil Das at the Origami Forum had written this a while back:
In the cartoon movie "Scooby Doo and the Ghost of the Black Samurai", Shaggy and scooby folds an origami Octopus and Velma realizes that the Destiny Scroll will show the way if you fold the scroll into an Origami Dragon. And the dragon was a neat model! Not any famous models, But at least it showed them!I couldn't find a video online for this segment.
Here's a transcript from the episode, Scooby Do and the Samurai Sword: