The whole idea of those was necessity.
The stage hands affixed a mirror to a sheet of used plywood.
Drilled holes around and mounted lights.
You couldn't buy them at the store.
They were handmade.
Two of these would be easier.
http://www.amazon.com/Angelo-Brothers-66414-Light-Bath/dp/B00004WKZ4/ref=sr_1_1?ie=UTF8&s=hi&qid=1232419198&sr=1-1