No, I have not
Perfect! I used Kris Percival's Warmest Mittens pattern as a guide (and I would like to note, also, that I competently and confidently used DPNs for this whole project). Although I haven't had mittens since I was very small, I've been wearing these every time I put on that coat, and they make me so happy (and warm). I like thinking of them as a joint effort between my friend who spun the yarn, and me who knitted them.