Awesome clock to teach students maths concepts

I came across this idea from Wanda Terral and it is a real winner.  Create your own equation clock to both help students with their understanding of Algebra and time.  Students could also take ownership of this project too. 

You can create one of your own by ordering a cheap clock like the one below and then just using paper circles to add you equations and style.

I'd love to see some pics of your ideas...