Add hammer: Introverso 2 Vase by Paolo Ulian & Moreno Ratti, in white Carrara marble, offers the intriguing option of chipping away the original square profile, to reveal a more curvaceous second form.

Details: Created for Italian stone furnishings specialist, Vallmar.

Designer: Designers Paolo Ulian and Moreno Ratti collaborate as Cactus Design, based in Italy.