Ways for kids to make money

Some children are more business minded than others and won't need as much help.

Lemonade Stand
This old standby is an excellent way for children of any age to make money

Dog Walking
This is generally a better job for older children

Cookies
Also, when people see you regularly, they will become regular customers.

Magazine/Newsletter
Charge enough to cover the cost of paper, stamps if mailing, and your time. Now to sell it. You can sell on the street, at a club if it's on a club topic, or go into a bookstore and see if they will carry it.

Window Washing and get money 
Make up fliers and go door to door letting people know about your service. You can also try local businesses that have storefront windows. House Cleaning

Mother's Help
You will get experience and someone is there if you need help. You can also offer to look after children in the playground, while their mother shops. Painting

Why not offer to paint them? Plant Watering
If you know of someone going on a trip soon, offer to water their plants for a minimal fee. Pet Sitting

Car Washing
You can put up a sign and wash cars in your own driveway or go knocking on doors offering to wash people's cars. Shovel Snow

Yard Work
Place an ad in the paper or go door to door for this one. 

Wake up Service
Keep a careful record of each client's preferences and wake up times. 

Toy Rental
Rent them out to families with children who are bored of their toys, or to grandparents who have children visiting. 

Muffin Breakfast and get money
If you enjoy baking, you can start making muffins and offer samples to people in your neighborhood. Give out fliers so they can take advantage of the offer later if they want to.