A kodama is a spirit from Japanese folklore, which is believed to live in certain trees
(similar to the Dryad of Greek myth). Cutting down a tree which houses a kodama
is thought to bring misfortune, and such trees are often marked with shimenawa rope.

Kodama appear in the animated film Princess Mononoke, in which they are portrayed as small,
white humanoids with large, rattling heads and mask-like features, similar to bobbleheads.

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