Here’s what happens:
A coin it confirmed to be tied onto a loop of string. Five other coins are then threaded onto the loop with the coin threaded through the string locking them into place as an example of an ancient wallet for money with holes in the center. It would take a miracle to remove the coins from the string. The spectators hold the loop on a marker which is then covered by a napkin. With a gentle shake the coins penetrate the cord falling into the magician’s hand proving. At the end everything is examinable.