Here is another shell stitch crochet tea cozy pattern; it's a popular stitch for this type of project. This is due in part to the design but also to the great dense texture that will help keep your tea warm while also keeping the pot safe for your hands to hold. This one has loops on the top to allow you to hang this tea cozy on the wall; make a whole art display of them.

Caravan Tea Cozy from Emma Varnam