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.
How to Choose a Jig Saw Blade: The biggest reason a jig saw is so capable, is the wide variety of blades available. For cutting wood alone, you’ll find blades for fast cuts, smooth cuts, straight cuts, and tightly-curved cuts. Plus, there are blades for cutting metal, plastic, acrylic, ceramics, and leather, among others. And you’ll find general-purpose blades that cut just about anything. When selecting a blade, you also need to make sure it will deliver the quality of cut you need.
If you're an occasional scroll saw user, you might think that one scroll saw blade is pretty much like another. The fact is, there's quite a range not only in type and purpose among scroll saw blades, but also in quality, and the differences can really show up in how a blade performs.