apzpins, The board that runs the NBA Fast Break pinball machine's basket displays is smarter than I had assumed. It has two CD4029 counter chips and a 7-segment driver for each. It uses 2 solenoid drives to control it; one for resetting it and one to step the number down.
I had previously assumed it was a lot less autonomous. Technically this could be powered on and run on my workbench.