Darrell, I made one of these about 2 weeks ago. I also used a piece of figured walnut from off the shelf and as mentioned, drilling the thing was a challenge.
I don't smoke, but have a friend who does and this prototype was intended for him to try out. Despite the size of the hole you have to drill, the finished holder will accomodate a cigar of only size 44 circumfrerence. That didn't mean anything to me until I handed it off for "testing" and it came back unable to fit anything in his humidor. It was long enough for anything he had though.
Even though this was too small for his fat cigars, I was a bit concerned about it being too large to fit in a shirt pocket. Probably would be OK in an inside jacket pocket.
Sorry, I can't provide any pictures because I gave it away (to the guy who gave me the walnut) before taking any.