Pencil/dry erase marker
Step 1: Find an appropriate drum head and find the center of circle
After obtaining a drum head, the next you will have to do is find the center of it. I don't have any pictures showing how I did it, but here's a video that I think is excellent in showing how (minus the Macintosh voice over.)
Note: In the first step when you draw a line somewhere, I drew mine parallel with the Slingerland logo so I can make the clock lines parallel/perpendicular with the logo.
Also, I would not suggest using a sharpie on the head as it may not come off and it will show through, mine reluctantly came off with a Mr. Clean sponge. But I would stay on the safe side and use a non-permanent marker or a pencil.
Step 2: Making the marks
Teal: is that starting point, every mark you make will be based primarily off these. Also where 12, 3, 6, and 9 will go.
Turquoise: These lines will be the segments where 1, 2, 4, 5, 7, 8, 10, and 11 will be. every line should be 30 degrees apart.
Red: inner circle, where the lines will begin on the front side of the drum head.
Blue: middle circle, where the turquoise lines will end on the front.
Green: Outer circle, where the teal lines will end on the front.
Use a compass to make your circles, you can make them any size that pleases you and also depend how big your drum head is. then use a compass to divide the circle in 12 segments. After that, use a ruler to make the guide lines
Note: these don't have to be bright colors, just something that you can see through the other side for tracing.
Step 3: Draw the lines on the front
Step 4: Poking a hole and installing the clock
After you have a hole that fits your clock mech, assemble it to it together, and you are almost done!
Step 5: Putting on the numbers
Later I found some Address numbers, And I think those would of worked the best, especially compared to hand drawing.
Now your clock is finished and ready for hanging!