Just did it - we've got a bunch of these off Aliexpress - mostly used for sticking crap to the fridge... They're about 6mm (1/4") across, so pretty smallIt did indeed stick to me for a few seconds - flat metal surface against skin will do that I suppose... but it stuck to me anywhere I tried - even my forehead - so I'm not sure my results inform this scientific experiment, sorry
Do you have a metal plate in your head?
Several. In fact, I'm mildly bionic...
Get that 6 million dollar sound effect when mounting the wife?