The Green Plisse Vase is attractive in a lovely hue of olive green. The deep furrows that swirl around the bulge in its form tighten and straighten as they flow to the top and to the bottom in a uniformity that can only be machine-made. The most surprising thing about this handsome vessel is that it is made of 3D-printed porcelain, an ancient material you might not expect to be so amenable to such a contemporary process.