If you have a Scrabble game with missing tiles it’s no good to play with but the tiles have many uses around the house.
Use tiles to label sections on a bookshelf. Attach to the edge of each shelf with removable mounting tape.
Glue magnets to the back of each tile and you have a new set of magnets for your bulletin board or refrigerator.
Drill a hole through one or more & string onto a necklace.