This crochet pattern uses basic crochet stitches in combination with post stitches for the top ribbing. It uses a button closure to wrap and secure the tea cozy around the teapot. This pattern is available for free download on Ravelry. It uses less than 100 yards of DK weight yarn so it can be a good stash buster project.
Short and Stout Tea Cozy from Ella Jensen via Ravelry