Thanks for the replies!
I provided the link more for reference than anything--it's just what I want, but I'm not exactly ready to by 5,000 of them!
I like the idea of something along the lines of the cake tin. I guess it's probably just a matter of stumbling on something like that
Hmm, the case at target looks really nice, and I bet it's really sturdy. I guess I'm sort of looking more for a double layer. I really like the case that came with the cybook for reading with it, I'm just looking for something extra to protect it while it's rolling around in the bottom of a backpack/suitcase!