A mini version amplifies the playful toy shape of Zieta's iconic Plopp. But some very grown-up technology is involved, with ultra-thin steel sheets welded together around their edges and inflated under high pressure to fabricate the 3D seating. Lightweight but durable, and each one is unique. The whimsical contours have made Plopp a much-awarded design since it was first introduced in 2008.