You get a card picked out, get it signed and then borrow a cigarette. You start to push the cigarette through the card randomly chosen in a bicycle game by the spectator.
It literally passes through the centre of the card and you can see it coming out from behind. You remove the cigarette gradually.
The card has no marks, no holes, you show that it is indeed the signed card that you are offering as a souvenir!!
Also works with a lit cigarette.