Looking for mirror with shelf

I came across an article or video of a large mirror with a shelf. The shape was not a rectangle but it had sides that tapered upwards so the top was wider than the bottom. Now I can't find it anywhere.

If if anyone can point me to said mirror I would be great full! I would like to make it for my stair landing that has two sconces of the same shape.

(.-.)

Looking for mirror with shelf