The other way you can do it is to just repurpose a picture frame and put a matching mirror inside of it.
Putting a frame around a mirror.
Adding décor to the bathroom by installing mirror decorative framing.
If the mirror is attached to the wall with screw clips either notch out the frame to accommodate the clips or remove the clips and attach the mirror to the wall with construction.
Use measurements to cut lengths of primed mdf baseboard.
Measure the outside dimensions of the frame so it overlaps the mirror.
Measure the thickness of the mirror and the bottom track if any.
I didn t have clips on my mirror but did have a countertop on the bottom to work around i decided to make my boards overlap on top of the mirrror a good bit.
The first is building your own frame around the mirror using baseboard molding which requires a little bit of carpentry.
Cut the corners on the frame square if using plinth blocks or at a 45 angle if mitered.
Have materials cut at a home improvement store and consider using style of door casings in home as inspiration for the look of the mirror frame.
When you want to dress up a mirror by framing it there are a couple of easy ways to do it.
Once your frame dimensions are known cut the four sides 1 longer than that final size.
The deeper of the two will be the depth of the notch.