Well, I tried the Boxy pouch. I adjusted the measurements from the tute, so this is more like a boxy shaving kit or large makeup bag. The photo did not turn out too well, but the pouch did.
I think I'm going to re-make it with stiffer fabric and some interfacing so it holds it's shape a little better, but I like it. I used an Amy Butler fat quarter and 18 inch cream zip.