If you use rare earth magnets to fasten the pin to the kilt you may be able to use one magnet to hold the blade in the sheath.
Brian
Aw - I was getting ready to say that.......... Still a good idea, even if you use pins to attach it to the kilt. You could imbed (place inside) a magnet in the sheath to hold it.
In fact I did this years ago with a small knife that I routinely wore upside down.
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