*I'm sure this is the wrong section, sorry if it is.
Online, I have found several countdowns (and a old friend built some and gave them to me) that look like the ones in these pictures, so I assume there is a template for them or something, but I'm not sure where at.
Not exactly sure what the bar on the side is supposed to do, but I made an easy countdown timer for you to use by adjusting an expression I got from Dan Ebberts. This project should give you a a starting point for your countdown.
"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.