Customizable Conjoined Spiral Vase

Design organically shaped vases with this customizer. The designs are simply comprised of one or two tapered spirals, each of which is in turn comprised of a series of overlapping spheres.

You control the basic shape by setting the size and position of the first and last nodes (spheres). Then the customizer interpolates the specified number of steps along that spiral path. I hope the attached diagram helps explain the basic settings.

If you enable "pair mode", you get two instances of the