Our bathroom sink is right under the window and when they but new double glassing they installed a new lip around the window. This lip took half of the tiled window ledge.
We had a mirror that rested on the tile and the window frame but the wind blew through the open window and the mirror fell.
I found this cheap mirror and thought that might work.
Then I remembered that I have an old camera mount with a suction cup. It was for the car, but the angle of the front windscreen is too steep so it never worked as a camera mount.
My Eureka Moment! Maybe I can fix the new oval mirror to the camera mount then the mirror can be attached to any smooth surface! The window or the tile will work.
So I shortened the camera thread and it just about filled into the mirror thread.
Adding a little “lock tight” to the threads should do the trick.
As you can see, the old camera mount has all sorts of adjustments available.
Now I have a mirror that will attach to any smooth surface, tile or glass, and is fully adjustable.