New Yorkers know that downtown’s @abccarpetandhome is a decorator’s dream, a global mecca for everything from fabrics and furniture to antiques and apparel. (And yes, there’s amazing jewelry.) Need some display inspiration? They’ve got that too.   Ultra-elegant kitchenware   A gilded gift display   Super-shiny office supplies   Moroccan tea glasses   Mandala necklaces   A vintage Thai Buddha