As a design student in the Netherlands, Yuya Ushida created the original Sofa_XXXX out of 8,000 recycled bamboo sticks (think chopsticks) for his graduation project in 2010. The expandable and contractible chair/sofa has since been produced using components that are injection-moulded from recycled plastic bottles and available in black or white. This version, available through Royal Ahrend is called XXXX_Sofa. Ushida has also come out with a stool version that only uses 600 parts and comes in a kit, not surprisingly named XXXX_Stool.

I don’t know, but even putting a mere 600 parts together seems like a bit of a challenge…

via the chair blog