This is the FlyFlap Cap from Laura Killoran, done in Debbie Bliss Rialto Aran in teal and sky blue. This should keep my brother's ears warm. I added a few extra rows because he's a big kid (6'4!). I did make an error thanks to not reading carefully enough -- the ties were supposed to be made as part of the last round, but I made them separately and attached them, which I worry will make them not as sturdy. Oops. Other than that, I'm pretty pleased with it. I'll even model it for you:
Hmmm. Possibly my new year's resolution should be less time crocheting and more time combing my hair.