Serendipity: a mysterious phenomenon often thought of as a ‘happy accident’.
Serendipity colorways are one-of-a-kind colorways created in different ways. Sometimes swatching for colors, sometimes testing dyes, new methods, or new yarn bases, sometimes using leftover dyes creating fun, one-of-a-kind colorways.  These colorways are either NOT reproducible or I have decided not to reproduce them, so what you see is all that will be available.