If you need to ship a small refrigeration unit how do you keep the compressor from making noise like something inside is rattling?

Some have motor mounts on the compressor and with 2 - 4 washers and keeper pins from hardware store clip them in place. This will hold down the compressor then remove afer delevery or may be noisy when turned on. check out your home refrigerator. As you know the compressor has a small piston in it and there is no way to stop it from moving also mark package as a " refrigeration unit " " this end up " . let sit 24 hours befor usin as the oil will be in the wrong place at the wrong time if it's been turned over.