I suggest ordering a few sheets of Kydex from Texas Knifemakers supply and make your own following the included instructions.  I have discovered that Kydex is ridiculously easy to work with and a with just a heat gun, gloved hands and a utility knife, a trained monkey could make a nice sheath.  All for about 5 bucks.
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Two is one, one is none.  That is why I carry three.