This game can help children understand that the long-term consequences of honesty are always better than the long-term consequences of dishonesty.
Prepare pairs of simple index cards or small sheets of paper. On one side of each of the cards in the pair describe two alternative courses of action - one honest and one dishonest - along with the short-term consequences of each action. Fill out the other side of the cards so that when the two cards are flipped over, the long-term consequences are revealed. Play it as a game, letting children decide, by looking at the front sides only, which option they would take.