Step 1) Spray Paint your plywood piece, leave to dry.
Step 2) Measure where you want to place your knobs, mark evenly using a ruler, and screw a hole on each end with a screw driver.
Step 3) Place knobs in holes and screw tight.
Step 4) Get your wire and wrap it on each knob, creating a line of wire from one knob to the next.
Step 5) Use your wire cutters and cut the excess wire.
Step 6) Hang the plywood on your wall and place all your sunglasses on the wire. Enjoy!