Vinyl clocks are on my to-do list. Either on a 12" tile with a holle drilled in the middle for the clock kit; or just applied directly to the wall. Here is a great site for inspiration in that regard:
You can get the clock kits at Michael's or Hobby Lobby to name just a couple places.
Here are a couple basic clock files to start you off. You can download the SVG of the arabic number clock here.
You can download the SVG of the Roman numeral clock here.