Clouds

Clouds are a very soft-like material used by the pigs in Hogs and Kisses,  Easter Eggs, and Summer Pignic in Angry Birds Seasons. Their properties are identical to snow, holding things in midair, and easily destroyed. They look like snow, but they are fast to destroy.

Trivia

 * Clouds, along with Snow and Sand, are the softest breakable material used for forts.