Need ideas to decorate a plain large bathroom mirror!
Can you add a pictures? Are you talking about mirror above vanity or someplace else in the bathroom? Sometimes less is more
You could consider framing it and then attach items to complement your decor or theme.
Agnes, make a good point, do you have a picture to share?
Gilda, People glue various wood to them, or sea shells, or even flat glass beads, but here are a few other ideas for you: https://www.hometalk.com/36967123/master-mirror-make-over
Here's some more