Entire Deck Color Switch

Original Author: anonyomous

Effect: The magician shows you two decks of cards, one red backed and one blue backed.  The magician explains that his cards are highly adaptive and he'll show you what he means.  He places the blue backed cards in the red card box and the red backed cards in the blue card box.  He snaps his fingers over the two card boxes.  Lo and behold, when he removes the cards from the red card deck, all the backs are RED! He takes the cards out of the blue deck and... all the backs are BLUE!

Procedure:

1. Before performing, get two decks of cards, one with all red backs and one with all blue backs. take one card from the blue deck, preferably a joker, or some other card you wouldn't often need and place it on top of the red deck. Then take one card from the red deck, also one you wouldn't often need, and place it on top of the blue deck. (see pic) You're ready.

2. show them one of the deck's back, but dont fan the cards. 97% of the time they will assume it is a normal deck of cards with nothing out of the ordinary about it.

3. Place the deck you just showed them in an empty card box (for a better effect, place the red deck with the blue top in a red card box and the blue deck with the red top in a blue box.. repeat steps 2-3 with the other deck.

4. Now, close the boxes and explain to them that the decks will magically change colors. If you put the red deck with the blue top in a red card box and the blue deck with the red top in a blue box, you can explain to them that your two decks of cards are highly adaptive and will change colours according to their box.

5. After explaining the above, snap, wave your hands over the deck, or your own style of magical gesture. then open the deck, and make sure that the largest flap is closer to the spectator. Take out the deck, but leave behind the top card. Repeat with the other deck. you can fan the cards to show them that they are surely all one color. Very simple method, great results.