Makeshift Field Repair on Rear Camera Glass of Blackview BV9500Pro BV9500 - Part 1 of 3

I had to replace my camera glass in the Blackview BV9500 Pro. While waiting for the right part to arrive in the mail, which I don't expect even to ship until a day or two from now, I need to be able to take photos and videos without having to carry around a second phone (read: LG G5 that I'm CONSTANTLY dropping). So, thinking outside the box just a little, I made use of some stuff the XYL is always getting on to me about. I'm always saving what she calls trash. To be fair, I save too much of it, but most of it saves well, flat, in very little space, out of the way. You never know when you'll have a need for it. Today's need was in the form of the clear plastic window from a toy's packaging. If you have to do this, I guess you make do with what you have, but you REALLY want to use the toy packaging where there's a cardboard box with a flat sheet of plastic for a window (even bent/folded is fine, just don't use vacuum-formed or "bubble pack") because that stuff is either not stiff enough or not optically flat enough (read: puts distortions in your image).