I hate to discourage any kid from wanting to earn some money.Tech. a kid would have to have a business license to mow a neighbors yard or sell lemonade.How many do?
I would suggest contacting a pest control or animal control office and see if they could use some help.You just never know.Also I remember bucking hay, mowing yards raking leaves,running a trapline etc.Just knocking on doors and asking if they needed help.Putting up ads on bulletin boards at the stores or even craigslist now days I would imagine.I have seen people running ads for predator control.They didnt charge to hunt coyotes but kept and sold the furs.
Good Luck Deer Toe