First, a full length church warden isn't for use except in an inn...or it won't be a full length church warden for long. :shocked2:
Something like a
Dutch Gouda Pipe may be carried by opening one of the buttons on your waistcoat between the lower tip of your sternum and the top button on the waistcoat, and you insert the stem through the button hole, so the bowl rides outside the waistcoat against your chest, and the stem inside the waistcoat..... Doesn't work if you don't wear a waistcoat.
Another way is to wrap it in a couple of pair of socks and put that in your pack..., though this makes it tough to get to during a break on a trek, and you still might break the pipe.
Stuck in the ties that hold the back of your cocked or tricorn had pulled up was a favorite of the soldiers ...., just don't let the Serjeant Major catch you with that if you are a soldier and "on parade".
You can also go to the supermarket, to the pet section, and get a very large, unflavored, rawhide "bone". Take that home and soak it for about four hours so it gets soft. Then unwrap/untie it and you will have a sheet or two of wet rawhide. You will need a leather punch tool, and you want to sew a pouch that the pipe will rest inside, about an inch or two longer than the pipe. It should not be a tight fit. A simple tube with a side seam, and one end sewn closed will do. You leave one end open to insert or remove the pipe, of course. Then when done sewing, stuff it with a dry wash cloth or rags or something to keep it's shape, and let it dry. It will shrink a bit, so make sure you left enough room for the pipe. When dry, it's almost like have you have a hard, plastic case protecting the pipe when it's inside a pocket or pack or soldier's haversack.
OH..., almost forgot...., rawhide stinks when wet...be ready for that.
LD