print. tape Stencil on guitar. Drill holes along stencil. Remove paper. Jig saw to open top about 1/3rd down the side. inside, remove all splinters from design holes by rubbing a knife blade back n forth. Cut to fit a piece of plywood for shelf. Clean up design holes using a chain saw blade sharpener so light can shine through better. Cut hole in back near neck of guitar large enough for Christmas light plug to fit through.