I've been wanting to make a working countdown clock from The Nightmare Before Christmas for a while now, but I'm stuck on one part of the design and could use some input from you guys. My goal is I want to make the countdown part of the clock (### Days to Halloween) actually functional, but I haven't figured out a way of making it look good. I don't really want to use some sort of LCD screen because it would have a backlight to it that I doubt would look right. I've been thinking of making some sort of mechanical system and then illuminating it with some warm LEDs. Unfortunately, I can't figure out a good way of doing the mechanical system yet. Does anyone have any ideas for a mechanical system that would allow me to show three numbers (up to 365) and update them daily?