Hand saw with a fairly fine cross-cut blade. A tenon saw of back saw is perfect for this. Use this saw to cut out the major parts. Coping saw or electric jig or sabre saw. Use one of these to round the corners of the sole, or if you’re short on cash and patient use a wood rasp (a kind of file) or sandpaper. If you’re not very skilled at sawing, you might want to get the rasp, too. It’s great for cleaning up those rough coping saw edges. A hand or electric drill. If you buy one, get an electric with a 3/8" chuck. It probably costs less than a good hand drill and has more uses. If you go the hand route, be sure to get the right type of bit. If it’s an egg-beater style drill then buy a 1/4" drill or a 3/8" with a 1/4" shank. If it’s a bit brace (big crank style), then buy a 3/8" auger bit. A twist drill bit has a fairly flat end, while an auger bit has what looks like a wood screw on the end. Sandpaper and a sanding block or electric sander. Get a good assortment of grits so that you can have a nice finish. A good grit to finish with is 220. A chisel and a hammer (for the single-piece version)