On the search for that unusual gift, check out Jonathan Adler’s enormous selection, where you are guaranteed to find something suitable: scented candles that smell like tomatoes, pepper or figs, dachshund-shaped bookends, candlesticks that look like squirrels, Scandinavian-patterned pillows and cashmere blankets, or the white pottery for which the label is famous. The five colorful interior design stores in New York are veritable treasure troves, and you should allow yourself plenty of time to explore them.