Here, the company UWear has made a wallet that comes in the collector case/tin. The metal tin has the classic Sonic logo on top, along with a face. Inside, the wallet fits in a foam pad. The wallet itself is black (either leather or faux leather) with an embossed in rolling classic Sonic on the outside. It's pretty subtle.
The wallet is only subtle until you open it. The inside, however is a busy colorful pattern, made only of rolling full color classic Sonic stock arts. The wallet has bills area, credit card slots & zipper pocket on one side.
The wallet has a lot of nice detail, spaces for items, and the fact that there's a tin too (to store it, or use for other things) makes it better.