<p>Are you a crafter? How about getting a simple Christmas ornament and painting their names on them, with their wedding date? and then from: Get a bright color, and even if she can’t see it clearly, the color and shape will let her know what it is. Those handmade ornaments are the ones that always go ont he tree first. If they are not Christian, then make something that they can pull out on another holiday. Since you feel so close to her, I wouldn’t get her something disposable, but something that would keep up the memories. Another idea - how about her wedding invitation done in braille over the real one, and framed? That way, they both can “see” it. And don’t worry about covering the plate. It appears your mother is doing that already for you, as well, so just give her something that comes from the heart and lasts, so everytime she takes it out she will remember you and her wedding.</p>