he could probably use a small pair of scissors to cut the word "Electric" out of the printed image. Remember he is not cutting out individual letters, but the entire word. He'd probably wind up with a tiny sliver of paper 1/16" x 3/16". After applying adhesive to its back, it could then be maneuvered into position on the old dial with a small pair of tweezers and then gently pressed into place.
Replacing a dial requires removing the hands and old dial and runs the risk of ruining the hands during the process.