This was a fun little project. I took an ordinary frame that I got on clearance for a couple of dollars It was deeper than a normal frame, not quite as deep as a shadow box, but deep enough that I was able to add some material and some buttons underneath the glass.
Then I took two extra large unfinished wood letters. I used W's, but I think you could get M's to work depending on the font of the wooden letter.
I attached the letters to the bottom of the frame using E6000 and then I screwed small screws from the inside back of the frame down into the tops of the wooden letters.
I took a dowel and attached it with screws along the backside of the W's and then covered the screws with buttons.