i just got a great deal on really good, well made 4" bounce mirrors WITH the attached brackets! They are about HALF the price of what we used to get from OSLS.
Also, the diffraction gratings for the front of the mirrors. they are NOT the thin film, however im not 100% sure what they are. lol. i *think* glass. or could be plexiglass. not sure. Fan and starburst.
Let me know if youre interested. (PM or here, i dont care.)
-Marc