Slioor started to organize fashion shows for members of the Finnish upper class in the early 1950s. She held fashion shows not only in Finland, though, but also in Russia, New York, and even on the "Queen Elizabeth". In 1955, Slioor lived in New York for a while, staying first at the Plaza Hotel and then in Sonja Henie's residence. She studied privately in a local modeling school, and held a successful fashion show for Vijaya Lakshmi Pandit and the wives of some of the UN diplomats. Among other newspapers and radio and TV interviews, "The New York Times" wrote an article about Slioor, "a buxom, flashing-eyed beauty", who is "Finland's leading model and the director of the Helsinki School for Models". In 1957, Slioor organized a major modeling and textile fair with great success in Saint Petersburg with the Soviet Union Chamber of Commerce. Mayor Nikolay Smirnov served as the patron of the fair, which attracted thousands of visitors every day. By the time, Slioor had also held her own fashion show on Finnish television, which origin is in the mid-1950s.