Kickstarter pledge levels for a single tennis ball speaker start at £45 (US$60). There's also a limited pledge level of a customized speaker ball signed by 1987 Wimbledon champion Pat Cash, and ...

You may have thoughts tennis balls were just for tennis – but creative ... during which he mentioned this project and its integration of found and repurposed vernacular objects.

A few decades later, Head sold his company, retired, and took up tennis. Like, he went all in: built a court at his house, hired a coach, bought a newfangled ball ... and ideas that make sense ...

At the professional tour level, new tennis balls get broken out every nine games. While the club and recreational players don’t pop open fresh felt quite so often, the tennis industry still ...