I have been going through some of my treasures (special shaped pieces left on my side bench) and I found 3 pieces when put together seemed to suggest some kind of resonance. I decided to use just two and I think they are recycled pieces of farm machinery. They had such a girlish shape (dress wise) that they became this piece with a few minor additions. I don’t have any sisters myself but my wife does and I understand how close they can be… and how different!