Manu Taria Rio exhibited his clay kawauwau, or Maori flutes, at Wellington's Soup Kitchen last week and Turkish immigrant Nas Kavas can be found most days displaying his ink sketches on the pavement outside a nearby supermarket. This week Ideas talks to Manu and Nas about their art; and explores the concept of outsider art with the director of Pablos Art Studio, Gaelen Macdonald, and Massey university lecturer and artist Stuart Shepherd.