This is my new creation. I'm not incredibly happy with the straps - if I would have had enough of the red cord left, I'd have made them out of that and I think it would have really turned out well. Also, my inside stripes don't match up since I forgot to line them up before cutting. And then, I didn't have any extra material - oops.
I did do a few pockets for the inside. One cell phone size (as you'll see my cell in the picture) and two a bit larger - either for a larger size cell phone (one of those fancy ones) or for a wallet.