Approached by clothing designer Walter Van Beirendonck to design a shop concept for his W.&L.T. brand, Marc decided upon a modular system, made up of easily portable items that could work as shops within shops or for pop-up events and trade fair booths. Marc designed a series of colored plastic display modules made from indestructible polypropylene that could be used and fit together in a variety of ways.  During opening hours the elements were spread apart and the contents visible, and during closing hours the elements were rolled up against each other, hiding everything from view and creating a closed box.