The lights are dimmed but for the sparkle from the giant disco ball, Tainted Love is playing on the stereo as you mix up a few martinis and a cheese plate and settle into your corduroy sofa awaiting your guests to kick off New Year’s Eve. Oh, yes, among the avant-garde, retro interiors trends are still making waves, especially in party season when the fun, sexy and sophisticated side of retro design resonates more.