To Make More iPhone/iPod Cases...Or Not?

I'm in a bit of a conundrum as to whether I should make these a part of my shop. I made one case as an experiment last night and just finished it a little while ago. I wanted it to fit around the clear plastic iPhone cases as well since I want to keep my phone covered but still keep the protective case on it too. Anyway, here are the pictures...any opinions would be great!