What should you do with your old tennis balls?

Sending those rubber-cored balls to the landfill is just part of the environmental toll they take. Fortunately, there are more sustainable alternatives.

What happens to the one billion tennis balls used each year?

Tennis Ball Size & Information Guide

Are tennis balls bad for dogs? What every owner should know

14 New Uses for Old Tennis Balls « The Secret Yumiverse :: WonderHowTo

Ten Creative New Uses for Old Tennis Balls – RecycleNation

The 50,000 mile journey of Wimbledon's tennis balls

Tennis ball wasteland? Game grapples with a fuzzy yellow recycling

Top 10 Things You Can Make With Old Tennis Balls

Tennis Club recycles Tennis balls – (News & Entertainment)

Is it safe for my dog to play with a tennis ball?

10 Clever Uses for Old Tennis Balls – Holabird Sports