“Sea & Sky” is a large metal sculpture by Charles O. Perry (1929-2011) that depicts the sweep of an equilateral triangle along an elegant 3D space curve. This report documents the effort by which I tried to create an accurate CAD model from just a few pictures of that sculpture. This sculpture then served as inspiration for several derivative sculptures that fall into the same family of shapes ‒ all of which are generated by a smooth sweep of a triangular cross-section. These explorations then lead to a new investigation of the kind of shapes that could be built with a very small set of “standard” building blocks in the shape of quarter-toroids bending through 90°.