Our PTA decided to do a "Board Game Night" as a fundraiser. Guess whose idea that was! Parents brought their games and kids, had the meeting while the kids played and then stuck around for a couple hours. We made money selling pizza, snacks & soda.
Bestest game was Gulo Gulo. I had 6 kids for each play and an audience of others waiting to play the next game. These were elementary school kids ranging from 5 to 9 years old. I didn't have to spend any prep time explaining the rules, we just jumped in and I explained as we went along.