I googled to see what I could find, and found this super cute tutorial. I pulled my scraps together and got to it. I followed the tutorial exactly, and the only thing I changed was not adding a handle. Next time, I would make the button closure about an 1" shorter. My phone fits perfectly and I had fun making it!
Please remind me to stop drinking iced coffee before bedtime and tell me that you sew/quilt/knit/crochet when you can't sleep :)