I've seen today's rerun of this so called reality show,and i'm 100% sure that there is nothing real excepte the prps used in these circus tricks,one of them had the guy asking a blonde girl to guess which glasses had water and which had acid in them,then he dropped aluminium foil rolled in balls in some of the glass ahd apparently the acid was activated by the foil contact,which i suspect had something hidden inside which reacted to contact with water
as the Romulanan said to Sisko in DS9 ITS FAAAAAAAAAAAAAAAAAKE

Elevation 43 feet above sea level