A manicure sponge stamp is a tool used in nail art to create intricate designs by pressing a sponge-stamped pattern onto nails. The 'manicure sponge stamp pictures album' likely refers to a collection of images showcasing various designs and techniques for using these stamps. These stamps come in different shapes and patterns and are used to apply nail polish in a controlled, detailed manner. They are popular among nail artists and DIY enthusiasts for creating unique nail designs.