How to rotate a whole model?

I made a model and I want it to move side to side as a bell would, but I have absolutely no idea how to go about this.

Hello! You could take the parts from the model and union them. Then the whole model will be one part! That way, whatever you do, it'll affect that model now part. Hope this helped!

You could put hinges on either end, so that it can rock back and forth like a bell. Then maybe you could use some part to hit it, and make it rock.