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Doc writes –

The World Yo-Yo Contest gets bigger and better every year. The event is split into several different categories, but one of my favorite divisions the World Mod Contest. In this division, competitors do their best to create the most unique entries either from scratch or from existing yo-yo tech. Check out S.Kon’s Nostalgia, an amazing recreation of a spoked classic car wheel.

Yo-Yo modifying contest – Link.