What you'll need. Oh yeah, and a 3D printer.
After bending a bunch of each number, we gave them a black powder coat. You could alternatively use spray paint. Or just leave that metal raw.
You can 3D print a clock base. Here's the FILE! We milled ours out of oak and used a threaded insert to capture the end of each number...
.125" Steel Wire and .0625" Steel Wire
Wire Cutters, Glue Gun (or Threaded Inserts), 3D printer, "10115" Movement + AA Battery
About 1 day (30 minutes bending)