I've had a teapot cozy my MIL gave me many years ago but I've never really liked it because the creator didn't pay attention to the fabric and the objects on one side are upside down. I finally decided to make my own by taking that one apart and using it for a pattern.
The green snowflake one was my first attempt and when it was finished I thought it was a little too snug. I then enlarged the pattern and made the sunflower one. Once I put that on the teapot I realized it was too big. Back I went to the snowflakes and with a bit of figuring I was able to make it fit, which I'm very happy about because that's some of my favorite fabric.
The center layer of each cozy is heat proof batting, like you use in oven mitts.
The cozy flat -