1. Find the center: Start by tracing your plant glide onto your scrap piece of paper and cut it out. Fold it in half horizontally, unfold, then fold in half vertically. Your center is where the two folds meet. Poke a hole in the middle of the paper with your pencil, and mark the spot on your clock face. (I obviously did this after painting. Bad idea.) Save your paper circle for step 4.
2. Drill the hole in the spot where you marked, then lightly sand the whole face. Remove the dust with a vacuum or tack cloth.
3. Apply 1-2 coats of primer and let dry. Paint the clock face one color and the side another. To get a clean line where the two colors meet, brush toward the edge. Apply two coats of each. Let dry.