Tennis balls! Duh!
In honor of Anna Wintour's favorite sport and the U.S. Open, Vogue commissioned 11 designers, including Diane von Furstenberg, Monique Lhuillier, Eddie Borgo, Tory Burch and even Maria Sharapova to pimp out their balls.
Check out all the balls in their sparkly, spiked and kissed glory (below)!
[Image via John Manno/Vogue.]