Have the entire group make a circle and pick 4 or 5 people to be a team. This team goes into the centre of the circle and forms a line by attaching their hands to the waist of the person in front of them (a “dragon”). Those people who make up the circle throw the ball at the “dragon”, trying to hit the last person below the waist. Once hit, the last person returns to the outside circle and players continue to hit the new person at the end of the dragon until there in only one person left and they too are hit. A new team then goes into the middle.
Time each team to see which one can last the longest.
A variation of this is Dragon’s Teeth Dodgeball.