Making a framed cork board / bulletin board came to mind. I picked up some fabric and foam core at Hobby Lobby, then grabbed a can of Heirloom White spray paint from Home Depot.
First step was to disassemble them.
Once the mirrors were removed from the frames, I traced the outline of the opening on to a form core board. (I could have traced the mirrors, but that just occurred to me at this very moment! Duh!)
After I had the opening traced, I took the frames outside for several coats of Heirloom White spray paint.
I used an Xacto knife and my sewing straight edge to cut out the foam core.
Next I glued on cork board to the front of the form core, using E6000 glue as the adhesive.
Once the glue was dried. I trimmed the cork board to the size of the foam core board.
The final step was wrapping the foam core/cork board in fabric. I cut the fabric a couple of inches bigger than the foam core then folded over the edge and stapled it together. I also used hot glue to the edge of the seams for extra hold. Then I hinged the two frames back together. Done!