A modular enclosure apparatus includes six segments that couple together to form a spherical core having three wings extending radially from spherical core. The three wings are angularly offset from one another about the spherical core. The spherical core and the wings are hollow. The modular enclosure apparatus is configured to be provided in a modular enclosure system including multiple modular apparatus configured to be coupled together.

A container comprises a cup and a sleeve. The cup comprises a base, a peripheral wall and a cup opening opposite the base. The sleeve comprises a base, a peripheral wall and a detached sleeve opening. The sleeve is connected around an outside of the cup, and is able to at least partially detach from the cup. The sleeve opening is dimensioned to fit inside the cup opening to engage an interior of the cup and define an interior volume between the cup and the sleeve. The engagement can be a partial or complete sealing engagement

A dual-function plate device is provided. The device is comprised of a food storage and transport device comprised of a body made from materials such as paper, bamboo fiber, or plastic, shaped like various types of plates or bowls. The body includes a flat bottom wall and a raised edge designed to prevent spills. The raised edge features two reciprocating fasteners, such as male and female or tongue and groove types, allowing two of the devices to be removably attached to create a sealed food container. The device also includes pull tabs to facilitate the separation of attached units. The invention further comprises a method for using the device, where two devices can be joined to store leftover food securely within.