I used old plywood from a wooden crate.
I used a hammer and screwdriver to make dings. I wanted the sign to look weathered.
I used acrylic craft paint to do this. One coat was fine.
Next I freehand painted the words.
With a larger brush, I covered the whole thing in clear Modge Podge to seal it.
I had some starfish potpourri, I glued it to the sign as a finishing touch.
Press and hold.
Picture was taken before I put the covers back on the switches.