Kinetic Sculpture by Arthur Ganson - Not at all about stained glass, but I remember this artist when he was just starting out in the Boston area some 25-30 years ago and doing his handmade gears from ordinary wire. He's come a long way and is making remarkable work. I only wish someone would bring this kind of inventiveness and thoughtfulness and humor, not to mention engineering skill, to architectural glass work.
A 15 minute demonstration recently posted by the TED people, from 2004 -