Bent over a wooden table, Albert Tay, 61, picks up a plastic knife – the kind that comes with a McDonald’s takeaway order – and gets to work.His hands run down a winding log of reddish-brown clay that is shaped like a dragon without features. Using the knife, he deftly carves out small, protruding scales, one after another, until they eventually form a dense pattern across the dragon’s body, which dresses up a 2-metre-long joss stick.With more twists and flicks of the wrist, he works on the…