So this "design" needs a lot of tweeking, but I thought it made a fun project for Lindsay's birthday! I really stuggled with lining the strap, and my handstitching leaves something to be desired, but, oh well. I think it's cute anyway!
The outside is done in simple Entrelac squares (15x15), the strap is increased cable (c4b) surrounded by garter st. The flap is from picked up sts and steadily decreased, adding a button hole near the point and I finished it off with a decorative border! I even added a phone pocket to the strap. We'll see if she likes it!