Once you've chosen your material for the base (Jif peanut butter lid) you'll need to drill holes in it so it can be attached to the pole saw. Unscrew the wing nuts and remove the saw blade. Use the holes in the blade as a template to mark the spots where you will need to drill on the base material. If you are using a base with a raised edge be sure you leave enough room so the wing nuts can be turned.
Use a drill bit/screw sizer to determine the diameter of the threaded rods that hold the blade in place. Mine were 5/16" and 1/4". Grab your drill and appropriate bits. Drill the holes in the spots you marked on the base using the blade as a template. Be sure you use the right bit on the right mark. Then test fit just to make sure.