answer:You could offer them on Freecycle.org . Someone will take them and put them to use. If you like science experiments, you can take one and burn the just the tape. That will leave a magnetic residue that will be attracted to a magnet. You can sprinkle it on paper and see magnetic lines of flux, or draw pictures, or observe how wires emit magnetic fields. Keep it away from your computer!!! Got it?!?!