One reason some people do this is so they can feel currents, and it's a cool party trick. But the real effect is spending the rest of your life explaining to people that you can't do something because you have magnets in your fingers.
I read this blog in 2009??? Found a guy to implant a magnet in 2013
Yep. From that link
"Rich Lee is known for implanting headphones in his tragi in 2013, as well as for his work on a vibrating pelvic implant called the Lovetron9000. His biohacking activities were used as a justification to remove his parental custody rights in 2016."
I got the same implants after talking to him about it on IG. It barely worked. An array of magnets on the skull would probably work. I had to get the magnets in my ears removed when the casings failed.