Spandrels usually provide pressure along the upper edge of the conoids. In between sequences of conoids, flat central spandrels fill the space. General solutions of the PDE can then be obtained from envelopes of such conoids. There are a lot of conoids with singular points, which are investigated in algebraic geometry. The resulting conoids, however, require great compressive forces to keep shape. Here, concealed transverse arches intersect the conoids and provide support for the hanging pendants.