You could do a lot worse.
There is a series of photos at Beautiful Life that covers the wooden boxes designed by Karl Zahn. These are brilliantly shaped and feature a single pin where they connect. The boxes open and close on that pin, and this photo shows the box as it looks when open. This is the sort of thing I would buy in order to deliver another gift inside.
These are really spectacular in their simplicity. How often can you go anywhere--anywhere--and find a walrus?