"Balloon Flower (Blue)," a 1995-2000 sculpture by Jeff Koons sits on display during an auction preview at Christie's in New York Credit: Photo: Tom Starkweather/Bloomberg The shiny sculptures sell ...

Paul McCarthy’s 80ft-high inflatable Balloon Dog sculpture Credit: Photo: Genevieve Hanson There was no shortage of buyers at Frieze New York last week, even though it opened in a rainstorm.