Here are some pictures of attempt number one of an Altoids tin iPod case. I made it with a few layers of cardboard, the leg of an old pair of jeans, some wire, a magnet, and two Altoids tin lids. The idea is very simple; cut a cardboard base, add two cardboard layers (each with an iPod sized hole), and glue some denim in there. Then, glue the whole thing inside the lid of a tin. It took a fair bit of clamping and pressing and fitting until the glue started to dry, but it turned out just fine and I made it in less than an hour.
I might make a new improved version later, and I'll get step-by-step photos for a legit Instructable. Until then, enjoy. And if you have any tips for ways I could improve on the design, feel free to tell me.