hexigloo

The HEXigloo cardboard pavilion features an organic repetitive pattern that mimics the cellular structure of honeycombs. The recyclable honeycomb cells are attached to each other using standard plastic fasteners, and the entire structure was assembled over the course of seven days and nights of continuous work.
It was built using a methodical process – the first step was to map a hexagonal grid onto a pre-modeled surface. The mapped hexagons were then extruded vertically to make a binding surface. Finally, the entire structure was reinforced to make it more rigid, stable and long-lasting.

http://inhabitat.com/hexigloo-honeycomb-cardboard-pavilion-pops-up-in-bucharest/