A man who shall be known as a hero to Star Wars fans for generations to come built a three-level bunk bed resembling -- in great detail -- an AT-AT. The genius writes:
I've always been a big Star Wars fan and was looking for a subject that made sense for this design. A Walker already had four legs and it seemed an obvious choice to base my design on. I wanted it to look as real as possible. In order to accomplish movement, I made the bunk beds appear to be walking. I also made several additions to the beds, for example a complete Hoth lego display case on the second level as well as additional areas for the kids to play and climb.
More pictures at the link.