An interior designer whose life has taken nearly as many journeys as his possessions. There are designers who proudly haunt thrift shops and tag sales, but Thomas Hays, an investment banker turned interior designer who has just redone a boutique hotel in Marrakesh, Morocco, is not one of them. High toned antiques dealers and his own far-flung travels are the source of the treasures in his Chelsea penthouse... "The key word is fusion," Mr. Hays says, when asked to describe his style. "I always try to put things together in a way that is unexpected — stone artifacts next to mohair, a gilt bronze next to hand-tooled leather.