Euricase Ring Box
To be completely honest, I have no idea why someone hasn't tried to make a ring box display before. It really is obvious, maybe.
The Euricase has a 2 inch LCD display that, believe it or not, has a clock, alarm, calendar, and a photo album. That's right, you can store your wedding photos there with 500 pictures or 60 minutes of video, all downloaded via USB from your computer. There is even a tiny light to spotlight that lovely wedding ring.
I know there are people who will just have to have this. Unfortunately, I don't have a price or availability date just yet.
Via Everything USB
