Grow-your-own Crystals Hedgehog Kit
Learn about chemistry in the cutest way possible—by giving this plaster hedgehog a back full of colorful, elongated crystal quills! It's easy—just dissolve the crystal powder in water, place the hedgehog with the plaster base in the solution, and wait 24–48 hours. Each hedgehog is unique, so no two crystal kits will look the same! Each kit comes with everything you need to grow quills: crystal powder, a growing container, a stir stick, a plaster base, a hedgehog figure, and instructions. Just add water!