Hi Carl, Yes, I was the one that had the reproductions made. Sorry to hear they didn't work out. When I first made them, I gave a few sets to a couple of friends to try out, but apparently they just put them on the shelf and didn't install any, so I didn't get much feedback on them. I only sold a couple of sets to people on this site before I heard from one of them that they had broken one, but I wasn't sure if that was due to installing them improperly or a problem with the material. I installed a set on #237 and have had no problems with them on that car. Send me a PM with your contact info and I will send you a refund. That applies to anyone else that I sold a set to that needs a refund too. As Johnny'O mentioned, we were discussing these clips recently, and I sent him the link to the CTZCC post about them. I don't know what they are made out of or how they will hold up, just trying to pass on info for another possible source. As far as having more reproductions made, last year I loaned one to another member on this site that was going to look into making them out of another material, but that never went any where. I agree that the originals were made of nylon and that is the only way to go for making reproductions. If your brother can machine them out of nylon that would be great. Rather than have clips made out of aluminum, I think you would be better off just using later inspection lids with the metal clips built in, if originality is not a concern. -Mike