Make a giant set of scrabble tiles! You could use them to make letter tiles to spell family names on the wall or to use in a photo shoot!
Size suggestions:
3 inch letters - (would fit well on 4 inch wood tiles) 3.5 inch letters - (use 5 inch tiles) 4 inch letters - (use 5.5" or 6 inch tiles) 5.5 inch letters - (use 7" or 8 inch tiles)