Mamuka Kucia bounced a table tennis ball 300 times on the spine of his table tennis paddle.
Peter Craig bounced a table tennis ball 44 times on a tennis racket,
alternating between its spine and face.
Brian Pankey bounced a golf ball 33 times alternating between the face
and the spine of a tennis racket.
Brian Pankey completed 21 consecutive tennis ball bounces using the
spines of alternating tennis rackets.
Mamuka Kucia bounced a table tennis ball on the spine of a DVD 33 times.
Taylor K. has 17 screws surgically implanted into her spine.
Tony D. bounced a tennis ball 10 times on the spine of a beach bat.
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