I thought of dressing up my iPhone as a Santa and here is the outcome. I simply worked it up like a sleeve in rounds. For the flap I kept turning the work for the back row.
Crocheted around a tiny button and sewed it so when the flap is closed you can see a full Santa Hat!
For those who want to try this easy patternhttp://decoratingandcookingforchristmas.com/handmade/crochet-christmas-iphone-case