Tea cosy

A tea cosy (or as Americans would say tea cozy) is a cover for a teapot, usually made of cloth or wool. It is used to insulate the tea, keeping it warm while it brews.
Tea cosies have become popular in the world of fiction with the 1997 book The Haunted Tea-Cosy: A Dispirited and Distasteful Diversion for Christmas by Edward Gorey.
Let me finish this post with a joke by comedian Bill Connoly - "Never trust a man who, when left alone with a tea cosy, doesn't try it on!" Why? The British-style hand-knitted cosies often resemble woolen hats...