I just spent some time browsing this thread, Peter you do some terrific work! I saw you mention my friend Rik Palm, he makes some very interesting pieces.
I've been collecting custom knives for 25 years and must have owned a couple of hundred. My carry knives are pretty basic, I work from home so I always have knives handy.
This is in my Jeep, always handy, picked it up from a maker on Blade Forums.. The orange handle really helps if you put it down or drop it:
This is a custom order from Reese Bose, a premier maker. I got some old , Maroon Micarta for the handle. My "dress" carry:
This Spyderco Military has become my "outdoor" folder, carries really well in 5.11 Taclite shorts/pants, on the right leg: