Meant to have a very quick search for a particular tea cosy (more properly a tea cover as it has no padding) didn't find the one that I was looking for but did remind myself of these:
Some of them I have used to make lovely (I think!) little bags (just right for little things) - so often these cosies are embroidered on both sides so double the value I reckon
I particularly like one with houses on:
This type always seem to have lots and lots of embroidery - the more the merrier!