They vibraphone all the receivers not just the Police.
Back in the early 80's I was on the State Pistol Team they hit us with a major budget crunch so if you want to get in extra practice you had to buy your own. I could use the loaders (five stage Star) in the Armory but not other stuff and the Armory Sgt was a big A double SS. I was still his back up but he would not let me use the Tumbler to clean my brass when he was in there because the noise bother him.
So, I took a Large metal Charles Chips can and put my brass in that. I added Rice and then duct taped the top on. I put it in the bed of my truck and let it roll around back there for a few days. It worked but the can took a beating. Sure cleaned my brass up nice and shinny.