Our coaches wife , who runs the concession, came up with
what is turning out to be a big winner.
If a kid fills a trashbag with trash,and turns it in,they get a free drink.(easy does it Chusid they are non-alcoholic)

Above is my smallest,youngest,fiestiest,lovingchild filling a sack full.
If only you could have seen him working it. The bag bigger than he
that too cute Patrick smile,the women were actually helping him.

Just when I wonder what I am going to do about my kids I am reminded how good they are.
The other kids played while he picked up trash and when he got back,he was sharing it
WITHOUT a prompt from mom or dad.
This trash idea is great if your fields looked like ours-a dump
Also gives the kids a sense of earning something they want
AND also just what throwing that trash on the ground does.