Wondering what would happened if you would swallow a whole bunch of them. Intestine burster? Not recommended to try out. Please!
Spitballs start off as small hard little spheres. Soak them in water for about 4 hours (or overnight for best results) and they will absorb water and grow up to 200 times their original size. Spitballs are now ready for war. They are slimy and squishy. If you throw them gently, they will bounce. If you throw them hard enough, they will explode into mushy pieces. And here’s the best part about Spitballs: when the war is over, collect all the whole ones and let them dry out. They will shrink back to their original state and can be reused at a later date. Spitballs – grow ‘em and throw ‘em.
More info: Spitballs