Here's a reflector I made from 0.020" specular aluminum. It's not perfect, but I think it will be 100% functional. I used 1/8" rivets, but I think even smaller rivets would work. Tomorrow I will mount the socket and holder.
Here's the pattern cut out and taped to the metal.
The pieces cut out.
Assembled.
Here's the pattern cut out and taped to the metal.
The pieces cut out.
Assembled.