The other knitting book all non-grandmother-generation knitters have, or want, or will get as a gift eventually. :) In Christmas 2003 scarf making, I had a very strong yen to make something I would KEEP for once, and made the devil hat for myself. Then for Christmas I received a red coat, and the reds are EVER so slightly off, which bothers me (ever so slightly), but I love the coat and the hat and wear them anyway, and boy am I a winter sight. I also have a red car. And a red purse.
I wanted a cat to model it to go with the pic of the handwarmers, but I also wanted to keep the hat in one piece, as the temperature where I am is negative witch's tit right now, so my sister's boy filled in.
I used yet another Lion Brand wool blend (I have quite a stash of LB stuff I am trying to work through--it may be the Blockbuster of yarn, but the corner movie store yarn brands are seldom within my budget) and IIRC followed the pattern closely wrt needle size and gauge etc.
This hat is so happy to wear! I love the earflaps, they are very warm and all hats should have earflaps. The choice of seed stitch looks very classy. The i-cord devil tails are not just cute, but very useful for not losing the hat in winter clothes-all-over-the-damn-place chaos (I thread one cord through a coat buttonhole for security). I am underwhelmed by the horns, which look a little too much like ears. They should be shorter or skinnier, and more visibly curved. They are triangular and I think I have come up with a hack to get the effect I want, which if I ever get around to doing I will post detailed pics of.
I made a few mistakes with the earflaps: placement--I put them such that the beginning of the work is on my forehead, and you can notice a little, and cast on--I picked up stitches such that the seam was on the outside. Who cares? Not all the jillions of people who comment on it whenever I wear it, that's who, and not me either. :)