Yes you are right Wildcat. Not many options if I really want to clean bottles the right way. Don't have any honey holes for digging but working on one! I appreciate your expertise. I always know where to go for the info I need. ThanksLike I did! And when you have beatten you head against the wall, just enough, and you realize how much more time -you’ve wasted enough time and you look at things that still are only half cleaned! It starts to sink in that nobody is selling good second hand tumblers anywhere- so you could be waiting- and it’s time to spend that $700- (or in my case, $1700 in big boxes that came- cool Christmas present so I got lucky.) But I’m working on my second Rotary in my second vibratory rock tumblers with modifications you wouldn't believe. It is maxed out,the new double rotary one. I have beaten the end to stretch it to fit a bottle, and really didn’t care if I had to junk it. I got a single but double sized barrel but that still didnt do it- so I got out my trusty dremel, and cut a hole in the cap with the neck of the bottle sticking out of the barrel and the body of the tumbler. The wasn’t the issue on that bottle so that worked, besides being beautiful! But good luck. May you find a great one that somebody is selling for cheap!