Whales' bones and teeth called Kujira Zaiku, which are made into accessories such as 'netsuke' (miniature carving attached to the end of a cord hanging from a pouch) and 'koto' (a long Japanese zither with thirteen strings)
-鯨細工と呼ばれ「根付」や「琴」などの装飾品に加工されたクジラの骨・歯の事。