Albery Y, the same guy who brought us this scope clock, built a nice looking word clock whose construction is inspired by architect Frank Lloyd Wright.  Powering this device appears to be an Arduino / ATMega168.   Be sure to check out the links below for more information from both Albert and Doug J, the inventor of the device.

Links

• Instructables Page
• Doug J's page
• http://i51.photobucket.com/albums/f386/dirtbiker888/wordclock/CIMG0029edit.jpg
• http://i51.photobucket.com/albums/f386/dirtbiker888/wordclock/CIMG0028edit.jpg
• http://i51.photobucket.com/albums/f386/dirtbiker888/wordclock/CIMG0027edit.jpg
• http://i51.photobucket.com/albums/f386/dirtbiker888/wordclock/CIMG0026.jpg