It turns out tennis balls are a handy addition to the at-home cleaning kit. Once you know what things you can clean with ...

"How to Make a Tennis Ball." Then the yellow spheres slide into canisters and have labels slipped on before settling into large Wilson cases, ready to be delivered to a tennis court near you.

"Poking their little heads out of the tennis ball." Harvest mice make Wimbledon's leftover tennis balls their new homes: ...

In my last column for Backcourt, I mentioned Hugh Hayden, a furniture designer that makes living room sets using tennis ... can send him their discarded balls so he can make a chair out of them.