Magno-yo

So i found this sweet vid of a magno-yo, and i think it might be a fun mod. i want to try it out but im not sure if its magnets on hubstacks or just magnets off of a post or something like that. i am currently modding a FHZ. if you have any ideas or recommendations, they will all be welcome.
here is the vid if you havent seen it

Those look to be just magnets in the center of the hubstacks.

I’ve played with those. Fun for a minute.