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Along the "wrap in tissue" idea above, and to be more helpful, I think I would cut a piece of felt about the size needed to hold two razors and fit inside a toothbrush holder. Then, roll the razors...

I don't have any solution to offer you. But, interestingly, a few months ago I bought a lot of straight razors that included a vintage razor case with two slots. I don't have it any more, but...