THE INVISIBLE SWITCH | Matt Pilcher - (Download) Mayhew fully sealed Memento Mori or

fully sealed Memento Mori or Memento Mori NXS deck of cards

Check out videos about it on YouTube

Apparently

Without doing anything you instantly know what their card is and it's location in the deck

but this is essentially propless

THE INVISIBLE SWITCH | Matt Pilcher - (Download) Mayhew fully sealed Memento Mori orYou remove the 4 Aces from the deck. Then, with the deck face down, you start to dribble the cards, inserting the aces face up one by one at various points. You then spread the cards face up on the table where you can clearly see where the 4 Aces are (as they are the ONLY 4 face down cards). Then, with just a magical gesture, the 4 Aces appear elsewhere! Don't worry, your audience is thinking exactly the same as you are at this point those 4 Aces are