I do some product design on the side, and as part of that I am working on several camera strap designs. I shoot with a Mamiya 645 and an RZ and would really like to make some experimental straps for them, but I cannot for the life of me find any source for strap lugs for these cameras. The RB/RZ lugs are the same for all the cameras, but there are newer and older versions of the 645 lugs. Anybody know a source for any of these in quantity? For design purposes I can chop up some used straps and harvest the lugs, but that won't work for production numbers. Thanks!