Themelis and other experts note that tennis balls make up a tiny fraction of the hundreds of millions of tons of garbage produced every year, and the keys with all difficult-to-recycle materials ...

And don’t be afraid to get creative. Tennis balls can make for unique material for art projects or collages. “I like to think of tennis balls as having multiple adventures,” says Cunningham.

Felt is a great material for dusting, because the thick woolen fibers cling well to dust and cobwebs. So why not get rid of those pesky, hard-to-reach dust and cobwebs by throwing a tennis ball at ...