Classroom Attention Getter/Noise Maker

Sorry for the crummy title. My mentor teacher has this metal attention grabber that has some squiggly shape with a handle. When you hit it against a hard surface it make a noise/chime and we use it as a class attention grabber. I've been wanting to get a similar one for my classroom. She got it so long ago she doesn't remember where from and I can't find it anywhere. Anyone have any idea?