Side Winder by Richard Bangs

Effect

Three cards are shown, two indifferent cards and a court card. The court card is sandwiched between the two cards, and grows to double its normal length....Then it is turned at a 45 degree angle (THE SIDEWINDER MOVE), and it is rotated back, made to shrink back to normal size and is tossed on the table along with the two other cards.

Comes complete with gimmick, cards, and instruction manual.