Well, I'm going to have to call off this whole thing. The only washers offered at a reasonable price had an OD (outside diameter) of 1/2", which would be too large for many razors. To have them cut to the correct 8.5-10mm OD size would have made the price no better than that offered by razor dealers. I apologize for wasting everyone's time. Perhaps I'll give it another try sometime in the future.
John