and direct that the performer seems to have no way to influence the outcome

Multiple variations possible e

Levered cabinet locks

with his finger pointing at the balloon

Here are some of the routines performed and explained on this video:

FOCUZ | Peter Eggink Harary and direct that the performerAny card is selected and is initialized on its back by the spectator. The card is shuffled back into the deck. Next, a blank faced card with a hole in its center is shown and placed on top of the deck the top card can be clearly seen at an times through the hole with just a flick the spectator's selection magically appears on top of the deck showing their initials right through the hole! Without any switches, the card is given back to the spectator as