A small pill made up of a compressed sponge inside a gel pill. When placed in water the casing dissolves, the sponge grows, and all delight! The sponge is often colored and cut into fun shapes, such as animals or dinosaurs.
I bought a pack of magic growing sponge egg toys for my kids, but they ate them all. They've been puking rainbow sponge dinos for hours.
by laserfeet April 15, 2009

10 Words Related to Magic Growing Sponge Egg Toy

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