Gorgeous sheaths! and practical, even better. How much trouble do you have getting your blades through customs? I've been toying with the idea of seeing mongolia on horseback. I'd love to have my FBM with me thousands of miles from nowhere.
Not much. I let them know what I have in the checked luggage at the desk when getting my ticket. It is never a problem. Only in carry on would you have a problem.
When I last went, TSA went through my stuff right in front of me, out in public as this was what they did to all luggage. I remember watching them pull my TOPS street scalpel out of the sheath, look at it with a strange look and put it all back in the case.