Ok. With this magnetic stuff: check for basic physics.

It is very easy to do:

Test magnetism with piece of paper or cloth in between?
The skin can be very adhesive already. And for magnets it does not matter.
With magnets you can move coins on a table, from below.
Check out Magnetic Boy.

Also check for standard implants (pace-makers, pins to repair broken-bones).

Even with ferro-fluid injected, which is the maximum magnetic substance it is very hard to make something stick.
And hemoglobine is not ferro-magnetic, so it is very weak.

This all smells like dis-info to discredit the science based vaccine skeptic community.