Immediately after practices and all games, you need to get around the fields, the course, or the courts, and gather up as many stray balls as you can. You should take buckets or heavy-duty bags so you can carry all of them. Some days you will find more than others, but after just a few days you are going to find your collection of balls growing.

If you are going to collect balls, you can walk around the outside of any court without anyone’s permission, but if you are going to go on the course or on the courts you should at least ask permission if it is a club. Other children already involved in picking up balls that are in the club so you may not be permitted too.

How are you going to make money? What you need to do is clean up the balls that you find. They are not going to look brand new, but useable. Balls that are used for practice in any game are worth purchasing if you are offering them at a cheaper price. 

You can sell these balls by contacting clubs, teams or individuals that you know that play the game, for the balls that you collected. Or you can advertise in free online, in the newspaper or by hanging flyers in sports shops. Sell your balls for about a half of what they can be bought for new. Your balls will sell faster the cheaper they are.

You can sell used balls online at auctions. This is one way you can get rid of excessive amounts of balls if you found a place where balls are .