Sponge

A Sponge is a decorative block introduced in Update 0.8.0 that is only available in Creative Mode.

Uses
In other versions of Minecraft, the sponge Block has the ability to soak up Water, it has a different texture, and it spawns naturally in Ocean Monuments. However, it currently does not have the ability in Pocket Edition and serves only decorational purposes.

Obtaining
Sponges are currently not obtainable in Survival Mode. It can only be obtained in Survival Mode through Inventory Editors.

Trivia

 * Sponge Blocks are widely known as 'Cheese' in Pocket Edition.
 * This is because it resembles cheese in appearance and serves no purpose as a sponge.