Magic Review - Sovereign Sandwich by David Jonathan
Here is exactly how the effect plays out:
The performer displays the two black kings - our "target cards"
The spectator shuffles the pack, selects & signs ANY card, then loses it in the deck
The spectator now genuinely shuffles and cuts the deck
Immediately after they are done mixing, the cards are spread face up.
The signed card is amazingly found sandwiched between the two black kings!
The cards can be examined!
The clever gimmicks hide in the deck and do most of the work for you. Sovereign Sandwich is a magician fooler that is easy to perform and makes your spectator the star.