A spectator watches as cups are stacked during a preview at a shopping mall in Hong Kong July 20, 2009, ahead of the World Sport Stacking Association (WSSA) tournament in August. Making its debut in the territory, sport stacking, which requires players to quickly arrange cups into various formations, aids in the development of important physical skills such as hand-eye co-ordination, quickness and focus, the tournament organizer said. Reuters Pictures logo Reuters Pictures 34 months ago

A spectator watches as cups are stacked during a preview at a shopping mall in Hong Kong July 20, 2009, ahead of the World Sport Stacking Association (WSSA) tournament in August. Making its debut in the territory, sport stacking, which requires players to quickly arrange cups into various formations, aids in the development of important physical skills such as hand-eye co-ordination, quickness and focus, the tournament organizer said.