Only One Tool Is Needed
This tool is your trusty computer, which is necessary to buy the two NIB magnets.
I recommend you get ten of everything............. your friends will love it.
And if your as old as the coin as I am
get 20 of each.
First you need a clean 1943 iron penny. This is available through a numismatist ( coin ) shop.
I used to buy the iron pennies from Wonder Magnet.
More recently I would buy 50 at a time about 40¢ each last year from a local coin shop.
You need one NdFeB Neodymium-iron-boron Disc Magnet, 3/8 in. x 1/8 in.
Available from Forcefield Magnet
And you need one NdFeB Neodymium-iron-boron Disc Magnet, 3/8 in. x 1/16 in.
Also available from Forcefield Magnet.