We did a similar thing for the original production and touring Miss Saigon. The actors cliumbed the fence so it had to be super safe.
Started with a long pair of runs of stranded wire. Put them in a drill and twisted them eratically. Add the barbs in window screen spline(half hitch knot)...
Scratch resistant anti-fog polycarbonate biforcals with the magnifiers on the bottom have been a big help since I turned 50. Mostly Uvex brand or whatever McMaster is carrying.
There are a lot of ways to approach this. We have purchased the cast iron and vacuum formed it, or made a silicone mold and cast it in urethatne. Cutting them in wood. Cutting in plywood and adding latex detail to make it more sculptural. But the best and most economical way if weight is not...
Cut into four pieces. Last drop tied to pipe with grommets. Three rows of velcro sewn to the top of the last drop. Three successive drops velcroed to the separate strips of velcro. That way you are only pulling on the drop that is tied.
Mirror Mastic. Works great on acrylic mirror. Some of the other suggestions will destroy the mirror.
I liked Gunther which advertises as safe for acrylic.
Just google it.
Started in 1981 running the vaccuum form machine and working as an artisan. General manager now but still get to do a little welding and carpentry every now and then. 37 years and counting.
We have made clear plastic vacuum formed lightbulbs for a couple of projects. They are a two piece vacuum form shape glued together around a smaller lamp. I think we made regular A type bulbs for string lights for a Carousel tour and Mogul lamp sized one for Cirque du Soleil. One had a fake...