The facilitator tells everyone that a balloon will be sent into the audience and they are to try to keep it up as long as possible.  The trick is that they cannot use their hands.  They are to use their lungs!  One after another balloon is released until there are several wafting around.  When a balloon drops to the ground it is to be picked up and held by whoever is nearest.  When it is time to end the ice breaker, ask everyone to stop blowing and to hold the ball nearest to him/her.  Those with balloons can be “volunteers” for a subsequent activity.  Alternative:  Have enough balloons for everyone.  Make certain you have the same number of balloons for each color you choose.  After batting and blowing balloons about, individuals are told to hold one balloon.  They then can be grouped by the color of balloons being held.