Thx! No I am Canadian and therefore use Canadian bills. I just looked on line and apparently A U.S dollar bill (or any denomination bill) weighs 1 gram. and the bill that I happen to use which was a 10$ Canadian bill weighs 1.1 grams so the difference is insignificant. However your assumption was correct, the bill was old and soft not new and crisp. So basicly the bill would just hang there like clothes drying on a clothesline. Even if I pulled the loop near the breaking point. Have you successfully attempted this trick in the past?