Hi all, I just stumbled on this group! Lots of great projects and discussions...
I made this clock out of an old hard drive. There is a slot cut into the top platter and a microcontroller determines when to flash the LEDs to make the clock hands show up.
There are
VIDEOS of the clock in operation on the site!



Take a look at the construction instructions.
http://www.alan-parekh.com/hard_drive_clock.htmlhttp://www.alan-parekh.com