Finally you have access to the ultimate protection for your friend. I've chosen 4" PVC sewer pipe as a case. I have figured out how to put bends in pipe without collapsing the walls. The drawback is, there is a limit to the amount of curve you can put into a case and still have the room to take in and out. At this point, cases are confined to fairly straight, non-bulbous didges. Closed foam mounted at both ends serve to cradle and eliminate movement. I have mounted D rings, so you can add a strap, if you desire. Cases must be made at time of purchase because of the custom fit. There are plans to make fiberglass cases to fit anything in the future. Just stay in touch.