Knight's Crest

Knight's Crests are found by Link in The Legend of Zelda: The Wind Waker. These belt-type items are looted from Darknuts and stored in the Spoils Bag. When 10 are given to Orca he teaches Link the Hurricane Spin.

Location
Defeat a Darknut or steal it from them using the Grappling Hook. They have to be shed of their armor before the Grappling Hook works.

They may also be found in chests.