[CraigInPA]

Michael's also sells a "stained glass paint", which is designed to be heat cured and painted on glass. I've used it successfully on small bulbs (555, 44, and 47's) and it lasts and stays the same color throughout the life of the bulb. You don't really need to bake the bulb, as the heat of the incandescents will bake the paint on after a few minutes.

 

[MildAvaholic]

I'll have to check into the stained glass paint. It would be cool to make "custom-colored" lighting.