Liquid polyurethane is coloured, poured into moulds and cured before the finished skateboard wheels are machined and fitted with bearings. Layers of pastry, nuts and syrup become baklava, while custard and filo are combined for galaktoboureko; absorbent materials and air-handling components are assembled into systems that remove carbon dioxide; and embossed beeswax sheets are rolled around wicks to create honeycomb candles.