Have a large rescued frame that you'd like to showcase? How about creating a shadow box to show off your plates and other collectibles. Build a backless box, approximately 4 inches deep, to fit the frame. Add desired shelves. Attach the box to the frame using metal L-brackets, one in each corner. Attach one side of each bracket to the box, the other to the fame - this allows the box to hang from the wall without stressing the frame.
Idea courtesy of Country Home