Extend the party beyond the ballroom with an airy, relaxed oasis for cocktails and conversation. A bamboo screen tied with raffia gives an open yet secluded feel. Decorate your lounge with a cornucopia full of heliconia, whaleback leaves, and cymbidium orchids, and set a table with a black tea set, a square pillar candle wrapped in leaves and ribbon, and small arrangements of delphinium and dendrobium orchids, all from The Color of Magic, 212-967-5439. Benches from Pearl River Mart, pearlriver.com. Crystal from Party Rental, Ltd., partyrentalltd.com.