Now we now how TB is gonna get you clean before a porn shoot CF! Hey, you gotta get all those nooks and crannies. New Porn name...ULTRA-FLANK!
On a more serious note ...My wife has a small cheap ultrasonic jewelry clean I bought her that really works pretty well. My trick is to boil hot water and use that in there. The hot water really helps to get the dirt off.
Once in a while, I turn on the espresso machine, heat it up and use the steam wand to clean her diamonds. After seeing them professionally clean her diamonds like that a the store, the espresso machine idea hit me!
Between the ultrasonic and the steam wand, her diamonds look like new!
A word of caution...you cannot clean sterling silver in an ultrasonic machine. Why, IDK. They cleaned my wife's Pandora bracelet at Pandora after buying her a few more charms. It was beautiful when she got it back. I said, geesh, I'm gonna use the ultrasonic on this too. The lady gasped and said, no, no, no. Never clean sterling silver in an ultrasonic. I then asked how they cleaned it and she said a tumbler. I asked what kind of media they used and she said, and I quote..."A small sized something or other." while making hand motions. LOL I said ok, I'll research it.
I have a HF 5lb tumbler I bought months ago, but have yet to open it. So I can't comment on that.