The first teacosy I've ever seen was made by Nik. It looked like a tiny country style turtleneck sweater that fit perfectly over Doug's round Zero teapot. How she got the size right without having the teapot in front of her, how she got the stitching so perfect whilst calling herself "new" to knitting, how she just... HOW.
I started work on my first tea cosy last week. It's slow going, because I haven't knitted in a long time. My tension is like I've never used yarn before. But we'll get there. This is probably going to be a very gradual lifetime pursuit.
I bought Tea Cozies by Guild of Master Craftsman when we were in Sydney. There are 30 patterns in it and I'm going to try and make them all. I learned one of my aunties collects tea cosies, which could make this the start of something lovely.