I have been trying to come up with a really good 1x2 case but it's still in the works. I like to sew the back panels on the cases instead of rivets but that limits me on the 1x2 because I can't fit my hand inside of the to sew the saddle stitch that closes up the back. The one Jimmy posted in the top of the thread is probably my best way of working around that but that has a few drawbacks of it's own.
Thanks for asking and if you have anymore questions just ask away.
Rusty