I have assembled a group of breadboards inside a box of Cohiba cigars. There is room for up to two replaceable Arduinos and a lot of real state for prototyping. Take a look at the pictures. You can see the entire article in by blog. I Want My Cohiba | Omar Francisco
I'm more of a pipe smoker myself, but the Navy did take me south of the boarder once where I tried a Cohiba. Man, were they rough stuff.
Oh, and the mobile proto rig looks pretty awesome too! I'd never heard of a FEZ Panda, but googled it after reading your blog post. Maybe I've been out of the loop, but that thing sounds purdy dang awesome. Why doesn't it get as much press as the Arduino?