FWIW, I should have a few .010 fiberglass mirage shields in a few days. I put black vinyl on one side but will probably leave that on the bottom as the top will be more of a matte than the vinyl side and give less glare. I put this in with a batch of flag material that I dropped off at the lazer shop a little over a week ago I think. I had him do a few for me a while back and like them so I used up what little black vinyl I had and am going to have a couple of dozen more this week. Just about anything will work. I've seen and used an old target cut into about a 2 inch wide strip taped to the scope and bbl before in a pinch. I liked the fiberglass mainly because it's light and durable, and can be rolled up and put in a small tupperware bowl or similar. Aluminum blind ones don't deal with being rolled up at all and they get pretty ratty looking over time. I'll probably retail these at like 10 bucks but will probably give more away than I sell, to be honest. They are 2x24, in this batch and can easily be cut down to whatever length.