Mirror Clips Decorative Name Of Decorative Things On Mirror Screws?

Name of decorative things on mirror screws? - mirror clips decorative

Does anyone know the name of the type of things, the decorative flowers around the base of the screw that holds a mirror that bathroom wall. You are looking very old-fashioned - Imagine if your grandmother's bathroom. And I do not mean that the clip can be used in place of a mirror. These things are to be used with screws.