This is a lamp designed by alien and monkey using sand as the main material. They use traditional ceramics techniques to create this lamp. More description by alien and monkey:
Using traditional ceramics techniques, we have developed a new material using one of earth’s most abundant natural resources, sand, to create ephemeral lamps.
These products can be used for a long period of time and, due to the elements, crumble back to sand dust at the end of its lifecycle.
Design of Lighting