Well when i do put black fabric underneath the light always makes it look gray and not that pure shiny black im looking for. And personally id think it would be easier with the black plexi glass
Sign shops... the people who make signs for businesses, usually have black plexi in stock... If they won't sell you a peice, you can at least have them order a peice in for you...
This site has it for $49. I've got the mirrored piece from them and it works great. I use it for seniors and kids. :thumbup: BLACK PLEXIGLASS-Backdrop Outlet