1v1 across the line, with two bumpers on the outside to pass off.
Bumpers
Play 2 touch, and must play the ball back to the colour that passed it. Remind them to move up and down the side to help the attackers.
Rotation
After each 3v1, the two bumpers go to the end of the attackers' lines (one blue, one green), and the blue and green players become the new bumpers.
Younger kids may not get the idea of wide targets, but older kids can use them to keep spacing and work on when to dribble and when to pass around a defender.