If anyone was lucky enough to purchase the last few pairs of blue domes that Code 3 was selling, you know that they used that horrible plastic strip to keep the 2 halves together. Unlike the originals, which had a top and bottom metal strip and were held on with 12 rivets.
Not boasting or anything, but I was one of those people that managed to get one of that last few sets of blue domes, which had the awful plastic strip. They were just really chintzy. And my plastic strips weren't even glued in all that well.
So I did the only logical thing, I measured the metal strips from some original domes that I had, had them designed, laser cut from stainless steel, and buffed them to an amazing mirror shine. I'm very happy with how they turned out. As a friendly word of advice, get an electric buffer. You'll thank yourself for it. I tried buffing these things by hand, going through the gradual steps of sandpaper grits. The first one went great, although I killed my fingers on, only to realized I had 7 more strips to do. haha No thanks. Work smarter, not harder.
I also bought some tubular 1/8" x 1/4" rivets, along with a rivet tool and, bingo! They look amazing, just like the originals. And gone is that stupid crappy plastic strip!