From the article on The Verge entitled Cyborg America: inside the strange new world of basement body hackers:
Currently reviewing shops at which to have the procedure done. When it's finished I'll update you five-sense-having people what it's like to be able to feel electromagnetic activity.
Tim, the proprietor of Hot Rod Piercing in downtown Pittsburgh, put down the scalpel and picked up an instrument called an elevator, which he used to separate the flesh inside in Sarver's finger, creating a small empty pocket of space. Then, with practiced hands, he slid a tiny rare earth metal inside the open wound, the width of a pencil eraser and thinner than a dime. [...]
Tim quickly stitched the cut shut, and cleaned off the blood. "Want to try it out?" he asked Sarver, who nodded with excitement. Tim dangled the needle from a string of suture next to Sarver's finger, closer and closer, until suddenly, it jumped through the air and stuck to his flesh, attracted by the magnetic pull of the mineral implant.
Currently reviewing shops at which to have the procedure done. When it's finished I'll update you five-sense-having people what it's like to be able to feel electromagnetic activity.