island

You start by telling the backstory: the whole group is going to the island and they need to take different stuff with them. The people take turns and say the things they are going to take to the island, and the leader of the game says if that item can be taken or not. The trick is that people can only take objects that start with the same letters as their names, e.g. John can take jeans, jelly, jeep; Mark can take maps, markers, milk etc. The game is over when everyone figures out the principle.

The leader of the game can give players small hints by always using their names: "Yes, John, you can take jeans" or "No, Sam you can't take a TV".