The gag that magicians love to hate, but they all use it anyway! And laymen still think it is entertaining and amusing, even though we magicians have seen it hundreds of times. A card is named aloud by a spectator and you say "If I turn my prediction around and you see the face of your card, that would be a miracle!" They agree, and you spring the 52 cards on one card face gag. Just make sure to move on to something truly impressive after this comic interlude! (or do the routine I describe below!)
Why do I need two of these gag cards, Mister TMGS? Well.... If you have a second (duplicate) 52-on-1, you can do this easy routine that I have used for years (and that I will include instructions for as a special TMGS bonus).
You show a jumbo prediction card. Spectator looks through your regular deck and removes any card. After she shows her card (let's say it is the 6 of clubs), you display the rest of the deck faceup, and show she could have picked any card, yet she picked the 6 of clubs. You then show your 52-on-1 card for the gag, prediction. You toss the jumbo prediction on the table facedown, and ask her to cut the deck. After you mark where she cut, you pick up your jumbo card and apologize for such a bad joke. You want to redeem yourself, so you ask her to look at he card to which she cut. It is the Queen of Hearts. Apparently forgetting you showed the gag already (or maybe in the context of teaching the spectator how to do the gag), you again call attention to the jumbo card, and say she will see her card when you turn it around. But this time, when you turn it around, she sees that her card -- the queen of hearts-- has been circled with a bold sharpie marker.
Card back is BBLUE BICYCLE RIDER, and the card is exact same size as current USPCC Jumbo ("Big Box") card decks. Card stock is slightly thicker than the current USPCC Jumbo cards
You get two 52-on-1 cards with the familiar Bicycle Rider back, and instructions for my routine with the circled selection kicker.
(The poker sized card box in the edge of the photo is not included -- just there for scale. But you knew that, right? Of course.)