They’ve all but cornered the ingenue market. Now Rodarte designers Kate and Laura Mulleavy are tackling the art world as well. Enlisting the help of high-concept fashion-show producer Alexandre de Betak—known for his runway work with John Galliano and Viktor & Rolf—the duo will mount rodarte: states of matter, a sculptural installation of their designs at Los Angeles’s MOCA Pacific Design Center (March 4 to June 5). The exhibition features items from recent Rodarte collections (and their whimsical Black Swan costumes) fashioned into various clusters and vignettes—some static, some in motion.