Split into teams with the number of defenders numbering 25-40% of attackers (8 v 2, 9 v 3, 10 v 4) depending on numbers.
Everyone must remain inside the diamond. Attacking team (A) start with the ball.
Attacking team (A) must use hands to work the ball around the diamond, avoiding team (B) who try to effect a turnover.
If you want to modify this for juniors, remove tackling and instead try to knock the ball free.
Loopy handballs are discouraged.
Team (A) need to keep on the move to provide multiple options for the player under the pump.
Once (B) effect a turnover, or a scrimmage forms, or (A) run out-of-bounds, change team (B) chasing players.