I always found Macoy's attempts at forming an androgynous American three degree system after taking the reins of the OES from Rob Morris to be interesting. He planned on using the OES as the first degree, with the Queen of the South as the second, and The Order of the Amaranth as the third. Needless to say, the established OES chapters rebelled at the thought of becoming just a stepping stone in any such system, while the Amaranth didn't like the idea of their potential membership being reduced by a third (or more), with the whole idea being finished off by the inability of the Queen of the South to gain any traction whatsoever and shortly thereafter fading into oblivion.
However, Macoy's American Rite of Adoption did catch on with, and is still worked today as he intended by PHA Masons and their female relatives (along with the Heroines of Jericho, a RAM based androgynous order driven to extinction in mainstream American Freemasonry following the aftermath of the Morgan Affair).