Another word game involves number plates on other cars. What you do is take the three letters on the number plate and try and make up a sentence/phrase/name that these letters could be an acronym for. There are no real winners, but it takes up a good bit of time, and even parents can join in.

Alternatively, take the letters of the car number plate and attempt to make a funny phrase out of it, using the letters as the initials of a phrase. For example car number plate M238 AMD becomes 'Mandy Ate My Dad'.