There's enough metal in the second vaccine to cause a magnet to stick to the area where it was injected.
Started on Tik Tok.
Then my daughters boyfriend tried it on his mom and aunt. Mom has second shot, it stuck, aunt has first shot only, didn't stick
Then my wife's father tried it, He had the second shot. He has a picture of a small magnet sticking to his arm, posted it on fakebook and they suspended him for 3 days.
FYI.