This doesn’t look like one but it is a mirror tagged with oil paint. And, of course (?), it is not an object for proper use but an art object. I wonder how the paint sticks on the mirror and am more convinced by the more permanent, etched marks made for the Private Property Collaboration.
JonOne made two of these in 2013 and the one above is part of the 2017 exhibition Abtract Gesture at Galerie Burger Rigail in Paris — I walked past this the other day.

This is the second one – pretty similar:

[1] galerie-brugier-rigail.com; [3] pinterest.com