I was going to say, other than that it looks pretty 'aight to me.

You could just glue a disk magnet to the back, couldn’t you? I have oodles of various souvenir magnets that are made by just hot gluing a cheap ferrite disk to whatever piece of bric-a-brac. I think that would be acceptable.

It’s not an un-magnet. It’s a multipurpose medallion. Bring your own magnet, lapel pin clip, or Velcro.