I took some scrap wire and wound it into coils, which I sewed to the fingertips of a knit glove. I tossed some extra magnets under the guitar strings, and then waggled my fingers over the strings while tapping the strings (still tuned to Open D) with a drumstick. It works ok, not great. The next version will use much finer, more sensitive coils, and probably only on the thumb and two fingers. It's hard to use all five!