I bought a basketball today and Lola immediately claimed it as her new toy. Within 3 minutes of playing with it, she had managed to puncture it. She then spent the next minute eyeing it suspiciously as it hissed - getting down and barking manically at it. Since the ball did not retaliate, she determined it was not about to bite her and resumed playing with it.
Even though this ball will be quite deflated in the next 24 hours, it will still be a great toy. We had a "yard" basketball before and despite it being flat and I think being wedged one winter in the blades of the snow blower - it still served as a fabulous dog toy.
UPDATE: Just looked outside and the ball is totally flat! (see next post).