Arizaga’s inspirations for Psychedelic Beauty, her trinket-laden fall collection, are seemingly disparate: surreal posters from Seventies artists Peter Max and Keiichi Tanaami meet native crafts from Guatemala and Peru. But the results—like her High Tide necklace, a silver-tone chain with shells, skull charms, glass pearls, and bright yellow thread—are harmonious. “The balance of color you can create with thread,” Arizaga says, “is something metals alone just don’t give you” (; $55 to $585).