Cut the pieces of wood to the same width as the clock faces. Round the edges slightly with a sander. Paint them black.
(Optional) Use eyelets to add a decorative touch to the edges. Drill a hole just wide enough to fit the eyelets in snugly without falling out. Use a mallet to tap them in, if needed.
Add letters to the nameplates. You can use a ruler to apply them straight.
Hang signs with velcro command strips. These make hanging a breeze and are rental friendly!
Notes
You can also make your own letter templates using a craft cutting machine such as a Cricut or a silhouette. To keep the letters straight it is a good idea to gently apply the negative image and then the letters. Then you can peel back the negative and the letters are perfectly placed!