Just wanted to say-- thanks for the inspiration! This was a great idea. I cooked up my own hour meter with some parts from BG Micro and a few things I had stashed here, running off a 9V.
Here's my pathetic effort.

Yours looks WAY cooler. :thmbsp:
Total cost is probably like $20-30 with stuff from BG + da Shack.
The red blinky light in the middle is so I don't forget and leave it on. The only downside is the counter has no reset.