Since it wasn't likely to get any use, I resized it to fit a Samsung Galaxy Tab 2 7.0. It's slightly bigger, but has some holes because of the cutouts.
I rounded the corners with a nail clipper. First time trying this. It was quite round, but didn't match the device well. Also, this device has curved edges, so it's very hard to stick to the entire corner. I made a notch and overlapped the skin a bit.
I think my biggest dissatisfaction is the edges and corners - the most vulnerable places - aren't protected.