I can't take credit for the idea, at convention there was a class called demonstrator theater. I need to look at my notes to see which demo presented this idea .
a few more, cased layout from new cattie, just changed color scheme.
remake of one I showed earlier.
To make all you do is punch out a circle about 1 3/4 - 2 inch. Then just cut it in spiral fashion to make a spring. The only tip here is to attach them on opposite opening sides to each other so the card will close. As for adhesive tomboy mulipurpose works the best!