I made my own as I do with a lot of my tools. I carry it with the handle down. it doesn't swing when I walk and is less noticeable since my arm usually covers it. It will work with either the 18" or the 31" Sampson's.
I have the ready shovel and it is great for carting my 18" Sampson.
You cannot go wrong with either the ready shovel or Buzz's set up as they are both made in the USA!
Now I feel lazy, I just screwed one of those little metal strips for holding sockets after bending it a little, acts just like a pocket clip on a bic style pen.