Volotennis "is a sport that blends elements from paddle tennis and badminton." So, already we know we're talking Junkyard - it's a sport built out of other sports. And, well, sure, you need special equipment, though clearly you could use not so special equipment. A
wiffle ball, even a
Baggyball would most potentially do. And for paddles, well, there's the, of course, recommended
Pick-a-Paddle, but clearly one could use, let's see, shoes perhaps, feet maybe, boxlids probably.
Volo, should you wonder: "The root 'volo' comes from the Latin word (volatus) for 'flight.' In volotennis, the ball is usually struck while still in flight, (i.e. before it bounces)." Ah. Of course. Still in flight. As in badminton.