A selected card vanishes, penetrates a card box, and appears in a sandwich in the cased deck.
Two decks, in their cases, are brought into play. One is red and one is blue. Barry selects one and you hand it to him (we'll assume he chose blue). You take the red deck out of the case and spread it face up and face down to show it is normal before removing the two black jacks. You insert the jacks face-up into two different places in the face-down deck. You then return the red deck to its case and close the case.
Barry removes the blue deck from its case, looks through it, and removes any card he wants. He sets aside the rest of the deck as you close the empty blue case and set it at an angle on top of the red-cased deck. Barry signs his card and then places it between the two cases.
With a magical gesture, the card disappears. You open the blue case - it is still empty. You remove the red deck from its case and ribbon spread it widely, face down, on the table. At the center of the spread are the two face-up jacks, with one face-down blue card between them. Barry removes this card and turns it over. It is his signed selection!
Now, get this: There are no forces, no difficult sleights, no gaffs/gimmicks, and no setup. This routine can be performed impromptu with two borrowed decks, and they don't even have to be complete. You just need to carry or borrow a permanent marker, so Barry can sign his card.
[Note that this effect is also part of Not Your Ordinary Card Tricks where it was described in a somewhat less detailed fashion.]
1st edition 2024, PDF 10 pages.
