Somebody can make the magnet stick, using a bit of double-sided tape.
And somebody can make the injection site and veins glow under blacklight, by first dabbing a bit of blacklight sensitive (but not visible in regular light) paint on them.
I’m fairly certain that the 1000 or so magnet videos I’ve seen aren’t using 2 sided tape. Plus I’ve seen a 100 or so that show the magnet flipping poles. It’s real and I’ve seen it and felt it first hand.
Mark