We bought inexpensive 24 piece puzzles. We had enough for two people per puzzle. Before we started I took out one piece from each puzzle. The kids had to put the puzzle together as a team. None of them could complete the puzzle as I had the last piece. I had the pieces in a bowl and then asked for one person per team to come and find their lost piece. This can be related to missionary work, finding the lost sheep, missionaries working together to make sure no one is missed. God’s plan includes every one of us, if one piece is missing our eternal family will not be complete.