i don't know if this helps, but in my son's class, they go outside in the afternoons (after rest time). when they get inside, they all line up on the floor until everyone has come in and gotten their drink from the water fountain, and the quietest one gets to pick their toy first. the teacher goes through the line picking the quietest one until everyone has picked a toy station to play with. then when the parents get there, if their child is the only one playing with it, that child picks it up before they leave - that's the rule. if another child is still playing with it, they don't have to pick it up, or maybe they have to pick up 5 things, or etc. whatever is fair. it works great for them. good luck. part of me wishes i could try early child care as a career, but part of me is terrified lol.