One participant defines a target zone (e.g. target zones divided with skipping ropes in a handball goal -> 3 colours with top-middle-bottom). The entire group then tries to hit the specific target (e.g. yellow-bottom) by throwing the howler (3 attempts per participant from a specific line).

Additional strengthening task:
Those who have not scored a hit complete a strength exercise: 20x jumping jacks

1 handball goal
6-8 skipping ropes (demarcate target zones)
3 marking tapes (define target zones using colours)
3 throwing objects (howlers)