Step 4: Tape the Magnet to the Battery
Now, place the magnet on the positive terminal of the battery and continue to tightly wrap the tape. The magnet should be held firmly to the battery.
If the magnet is stuck to a ferromagnetic surface, dont pull on the LED throwie. Apply a lateral force to the magnet and slide it off the surface while lifting it with a fingernail or tool.
Remember to keep the magnet away from conventional hardrives, credit cards and other data storage devices.