Maybe every time the ball goes to the boundaryb the oundary person can chuck one of the 20 cricket balls he is holding onto to the bowler. Sort of like they do in soccer when the ball is hit into the crowd. As al Furqaan said it would be weird.
“The long I play, I will try to play good cricket. And if I succeed, that will be the biggest satisfaction.” - Imrul Kayes (April 2016)