Shellycoat

Shellycoats are a fictional sapient species originating in English and Socttish folklore.

Description
Shellycoats are humanoid water-dwellers (sometimes said to be related to goblins) whose most striking characteristic is the coat of seashells they wear, which rattles loudly whenever they move. Unlike grindylows, shellycoats are generally harmless; they are mischievous and may yell that "they are drowning" in a human voice as a prank, but they have never been known to lastingly harm anyone.

Inspired
Creatures inspired by the folkloric Shellycoat include:
 * Shellycoats (Changeling: The Dreaming)