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The Urawaza Spin Ice ice cream yo-yo

Urawaza Spin Ice

We'd knock this for being the usual Japanese craziness, but there's something absurdly practical about a yo-yo that doulbles as an ice cream maker. Insert cream, sugar, and flavorings into the Urawaza Spin Ice, walk the dog and rock the cradle for ten minutes, and you're all set to enjoy a reasonable facsimile of what you could buy for a couple of bucks at the store. On the other hand, there's nothing like tricking children into making their own food.