This effect is in Joerg Alexander's excellent S.A.M Lecture notes. We may still have some in stock for $20, though we took most of our copies (possibly all!) to FFFF for Joerg to sell on this tour. If we can't supply, he likely can once he gets home. They also have a nice "Bills across" routine, among other things.Originally posted by Pete Biro:
It was a counting effect, much like cards across, the quantity of the bills kept changing. I was very nice and I'd like to buy it (or if it is in print.... get it).