http://www.youtube.com/watch?v=UyHiIeBsc9E&search=oblivion%20book%20dominoes
Video of what you can do with a level editor and too much time.
Very cool. That led me to Star Trek Cribs(http://www.youtube.com/watch?v=eBXal1GAA4A&dpos=1 (http://www.youtube.com/watch?v=eBXal1GAA4A&dpos=1)) and The Five Second Rule (http://www.youtube.com/watch?v=u1z6OCRJVks&dpos=2 (http://www.youtube.com/watch?v=u1z6OCRJVks&dpos=2))