We like us some Scrabble in this house. When my partners teenage son moved in, he brought with him his own Scrabble set. Since our old one had a few tiles missing (er one of them a "U" people! Which is super annoying when you end up with a "Q" in your selection!) I thought I'd indulge in a little repurposing.
You'll need old scrabble tiles and magnets the same depth as the recess in the back
Glue the magnets in
Leave to dry! Properly! Like for several hours! (Trust me on that one!)
Aaaaand you're done!