Nail art is the cosmetic commodity that glitzy celebrities like Lady Gaga Katy Perry and Nicki Minaj lend their names to, the theme of gallery exhibits and glossy coffee table books.
Martin divides his time between a Gold Rush-era house atop San Francisco's Telegraph Hill, where the theme is the Wild West (racks of Colts and Winchesters, plus an 1880s roulette table with scrimshawed ivory chips), and a country house in the Napa Valley town of Rutherford.