I was inspired by your box to do something similar - mine's not quite as fancy, but I wanted to test out some burning and construction methods before investing time and effort into something more fancy. This is a basswood box from Michael's with balsa dividers, so the box itself is nice and light. I've yet to do the sides, but am really happy with the top burn.
http://www.flickr.com/photos/snarkyboy/5227670584/