Here's an idea I hope your family will like when playing Scrabble. After all the tiles are gone and the points calculated, an opponent has the opportunity to add to their score by creating ONE cohesive sentence with ONLY the words on the board. The winner and extra point amount is determined by group consenus. It was excitingly nerve wracking to create our sentences but even funnier to hear everyone elses. Here is an example of the rules we made-up:
1) Does the sentence make sense?
2) Does it adhere to grammatical rules?
3) Words can not be duplicated in a sentence if it is not duplicated on the board.