You introduce a deck of cards and spread out the cards to show that it is a regular deck of cards. The cards are then placed in a card holder and two of the cards are used to slice through the deck. The middle of the deck is then pushed away from the rest of the deck, in a zig-zag like fashion. The deck is then restored back to its original condition.
Gets you the same reaction as the classic Zig Zag Lady, but this can be done in close-up and you don’t have to tag around the heavy equipment either.
This trick comes with the requisite Jumbo sized cards.