Crystal Coconuts are items that appear in the Donkey Kong series. They are very common in the game and can be found in nearly every level in the game.
Donkey Kong 64
Crystal Coconuts in Donkey Kong 64 serve as a source for the Kongs to use their transformations or power-ups they receive from Cranky Kong. These include Donkey Kong's Strong Kong, Diddy Kong's Rocketbarrel Boost, Lanky Kong's OrangStand Sprint, Tiny Kong's Mini-Monkey, and Chunky Kong's Hunky Chunky.