I did the same thing you did but for the short one. I should be able to tumble a squat now. Inside only. Thanks for the idea.So I sometimes tumble bottles that don’t fit so I had to cut the side down and just leave the canister open. I usually fill the bottle with the copper and cleaning agents, use a Buffalo Trace whiskey cork to stopper it, wrap it in a couple of shirts so the bottle doesn’t move inside, and then tape the mouth of the PVC closed so it doesn’t try to slide out over time. Not the most professional looking contraption but it gets the job done.