I'm a field service technician and wear a neck knife every day for it's practicality. Whole lot more efficient than a pocket knife. All are wood or antler-handled with leather sheathes, and my preference is for smaller and sharper (just need to make a quick cut). I've got a few, but they're hard to find. 1-1/4" X-acto blade on a 2" antler-tip handle is my favorite.
Some pick out their necktie in the morning.....
If anybody has a good source, I'd be thankin' them...
Get lots of wondering, positive comments from the folks I come into contact with!