Favorite place to shop for materials or inspiration: “Right now downtown São Paulo, like St. Efigenia or Florencio de Abreu streets. They have hardware and materials stores where everything’s stacked up to the ceiling. One is more for electrical stuff, another is more for hardware and tools and plastics. They’re like industrial warehouses. In Tokyo don’t miss Tokyo Hands.... It has everything.” Above: A wall in Jahara’s own studio.