How to make a Homopolar Motor explained, the best science fair project ever for children, kids and easy! magnet motor - motor magnetico 3 different designs, a heart, a spiral and a square. A simple kids science project mini motor. You will need copper wire, AA batteries, a neodymium magnet and pliers. Pause and follow the simple diagram instructions the video to create the copper wire part of the homopolar motor. To create a heart or spiral you will have to fiddle with your copper wire and make adjustments. Check out wireless homopolar motor: