Split class into 8 equal groups (some groups may have more/less depending on class size) and assign each group with a hoop (nest). Players run and collect rugby balls from other nests and bring them back to their home nest. Players are not allowed to block, tackle or defend anybody else. The focus is on collecting the ball utilizing correct technique, run with the ball correctly and place the ball down without knocking on. The team with the most rugby balls at the end is the winner. 

Modifications

Introduce a passing rule where players must all pass the ball between all team members before placing the ball in their nest. Encourage teamwork and correct passing technique.