â€œFirst stepâ€¦ locate a machine where you put the coin the slot above the handle turn and drop the coinâ€¦.Once you have found your victim buy one piece of gum chew it
Once the gum has gotten softâ€¦. tear off a small bit and stick it to the quarterâ€¦ then take the quarter and smash the gum in the slot and turn the handleâ€¦
If done right once all the way around your quarter will still be in the machine ready for round twoâ€¦ Now keep turning till you get your fill of gumballs… â€
Basically you buy one gumball, use a piece of chewed gum to stick your next quarter to the machine in the coin slot, and supposedly you’ll be able to turn the handle repeatedly and score gum, because the quarter will never drop into the machine.