House of Cards
Provide your Huddle members with a deck of playing cards or note cards. Tell them they must create a card house with at least two levels to it. (They will soon discover the difficulty in establishing the foundation level, not to mention the upper level.)
After some time has passed, use their experiences to emphasize the parable of The Wise and Foolish Builders (Matthew 7:24-27). Compare the house built on sand to the card houses that kept falling down –– our lives without Christ as the builder. Then compare the card houses that did stand to those with the solid foundation of rock –– Christ as the careful and masterful builder of our lives.