Ok so I got this cylinder to play with and found out it had this big stupid plug. After welding a nut to it and slide-hammering it out eventually after some persuasion, it left this big old nasty cavern. Thought, well maybe some kind of lil reed setup will fill the space? Not sure how well this will work, but I'm gonna try and fit a batavus reed block in there, the shape and size just kind of asked for it to be tried out. Wish me luck??