A Little Help Over Here with My Bad Memory

For the love of brass of all things Holy. I read a post that some brilliant DIYer did with a brass bowl they got at Goodwill or a thrift store. She put something like a silver cleaner or something common on the brass and it turned it to a silver color. It was a while ago, like earlier this year or last year even.
Quick, before I slit my wrists does anyone know what I'm talking about??? Or am I just losing my mind trying to rid our front entry of brass.
NOTE: It was not rub n buff and nor spray paint. Though I'm ready to pull out the rub n buff if I can't find this other, more permanent fix for that brass.