LED Throwies On/Off Switch

Materials:

2x card paper (Manilla) slips

1x 2032 lithium watch battery

1x 10mm diffused LED

1x rare earth magnet (Neodymium)

Tape (electrical or duct tape)

Touch the ends of the LED to the battery so that the longer end touches the positive side of the battery

Cut a 5-7 inch long strip of tape. Stick one manilla tab on the tape

Put battery and LED on the manilla so that the positive side is face down

Wrap the tape around once and put the magnet on the negative side of the battery

Slide second manilla tab in between battery and longer LED end so that it can break the circuit when slid in and out.