Halfway through the film, Moana and Maui encounter a tribe of anthropomorphic coconuts called kakamora. Moana remarks, "They're kind of cute."
Then the kakamora paint pearly white teeth on their armor and take up arms. Their ship emerges from the fog, revealing a massive fleet of pirate ships.
What follows is an epic chase that recalls "Mad Max: Fury Road." Just as Max, Furiosa, and their crew set out across a desert wasteland to escape the movie's War Boys, Moana and Maui race across the sea to skirt the kakamora. Their large, ramshackle vessels are reminiscent of Immortan Joe's brigade, while the creatures' painted faces mimic those of the War Boys.
While it's not an Easter egg, per se, we appreciate the thought that went into it.