Yes, the tea cozy is done! This is the cozy over a two-cup pot, but it also fits a four-cup pot. I didn't expect it to go together quite so quickly, but aran weight yarn is pretty big stuff. The yarn was soooo soft: I must recommend Merino Superwash!
There was some leftover yarn. From the pattern, I thought I'd have enough to make another, but I used just a little over half the yarn. Hmmm... I'd like to figure out what to do with that!