Thames & Kosmos - 551106 | Gross Science

Castle Toys Verified independent store

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Mix up three different types of safe, non-toxic slime and play funny pranks with them. Make fake snot, a glowing “radioactive” spill, and trick doggy doo. Explore the weird and wac ky properties of slime that makes it so gross and so much fun at the same time! Mix up yucky substances, play pranks with them, and explore their properties. Show more