I always have a wide selection of plywood stock handy for last-minute projects, but hardwoods like pine or birch would have been fine for this project as well, I just like how the grains come out on the top layer of the ply once it's finished.
3/4" thick plywood
4 Brass Cup Hooks ($1.73 at my local hardware store)
Minwax Wood Finish
Sandpaper (assorted grits between 80-320)
Slot-cutting bit (optional)
Center Punch tool + Hammer (optional)
Safety Glasses (mandatory)
Step 1: Find A Template
I taped the cut-out template to my plywood piece, and marked the centers of all the hole positions with a hammer and center punch (a pen works just as well too).
I've detailed the sized of the holes to be drilled in the attached image.