Stacking

Today I saw the sport of stacking for the first time. I was excited, laughing and shouting at the same time. These world championships bring together kids of all sizes and ages. It is 'upside down juggling', that's what it is.
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There are three videoclips to watch.
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http://www.worldsportstackingassociation.org/wssa_news.htm
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http://www.worldsportstackingassociation.org/