Magic Box!

Magic Box!  Not only is it a box... it's magic!  Magic box starts as an ordinary, run of the mill box.  But upon closer inspection, the magic box is much, much more.  It starts as a towable box of ordinary dimensions (looks to be ~3x3x4 feet) and opens up into a desk, chest of drawers, stool, and a chair/bed. Check it:

http://email-junk.com/pictures/magic-box.html

I've always found it really cool when you can fit a lot of functionality into a really small or compact area.  Like those brothers who built that cabin in the mountains that we saw in class that one day.  They fit a TON of stuff into that little shack - so much so that it made me want to go out and build one myself.  But I digress... this little fold-up room looks like something out of a transformers movie.  It just goes to show you that if you can build a lot of functionality into a product it will make it that much more appealing to a consumer.