I wanted to make a fun and animated NEMA motor rotation visualizer. Using the brilliant idea by Petclaud and amazing design by slavikk, I made a few amendments to get it to work with a NEMA motor. I attached the two pieces together permanently with a drop of super glue on the joining tabs. I also made a single layer indentation in the back for the magnet in the center of the two pieces.
Use one or two 8x3mm magnets to attach it to the back of a motor and watch Finn and Jake go for a spin! Adventure Time!