ok so according to this article posted by Michael,
http://maast.org/forums/showthread.p...light=dimmable
There is a link that Chris posted to some mylar tape
http://www.championlighting.com/home.php?cat=377

I assume that you have to run this tape end to end across the bulb? Doesn't it have to contact the contact points on the bulb itself to allow the bulb to dim without it popping and breaking?