Dan Woodlief , Mar 03, 2000; 11:58 a.m.
For reflectors, foam core boards are very effective. Some craft stores sell them with white and gold sides. I have known a few professionals around here who use them regularly. John Shaw suggests making silver reflectors by taping and gluing slightly crinkled aluminum foil on a piece of cardboard. For diffusers, he suggests cheese cloth with a frame of cardboard or some other substance.