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You need paper mache, baking soda and vineger, and red food die.

Form the Paper mache into a cone so it looks sort of like a volcano. Next fill the cone with baking soda. Mix the Vineger and red food die together in a cup and when you're ready to shrink pour the now red concoction into the cone. The bubbling means it's working.

Optional: Paint the cone to look more like a shrink ray.

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14y ago

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