After seeing a pinball clock on the Crow River website, I decided to build one myself, using my own hardware and software.
The Pinball Clock Project
Essentially, this is a gutted out Magic City backbox, leaving only the score reels and lamps, with a PIC Micro controller and some custom electronics that make the score reels display the current time.
I described this project in detail in the December 2008 issue of the now defunct Gameroom Magazine .
Here's the magazine cover.
Inside the clock
I didn't grow, and my daughter didn't shrink...I'm standing on a box ;-)