Hey, you were pretty much on the money with Legend. It's a little more complex than what I excepted, but works on the same principal that you mentioned. A rubber band and a piece of clear acetate that is made in the shape of an L. One card on the inside is what the gimmick is made of. You have to leave one card in the box. You only have to remove about 8-10 cards for the gimmick to have enough room. I haven't made it yet, so I'll let you know if it is worth buying. I will say, he did a lot of homework in building this gimmick.