Hungry Hungry Hunger Games

 

If you're able to score multiple Hungry Hungry Hippo marble consumption arenas, you can host a rather noisy tournament and have multiple groups of teens compete at once.  If not, teens can watch the action unfold while they wait their turn.  You might want to consider advertising a Capital Couture Cosplay Contest to spice it up.  This prevents the teens from getting too bored as they will be in character.  Besides, once you get to round two everyone will be oddly fascinated by the eating contest... let's be real.. 

                                                      #swag - (via)