Playa Del Rey
Ok, the first topic is; school.
My proposal uses an ordinary household object commonly called a "child". Many households have two or three layabouts by that description.
The game is, you send them to school, they tell you what they did there. Score 1 point for the child for each whopper they get away with, or each truth you decline to believe. Score one point for you for each truth or lie correctly identified. I believe this game probably qualifies as traditional, although perhaps under slightly different rules.