Yes its just nonsense. A mourning black pompom? I'm sure in their 70 year marriage she has a brooch or even a happiness she could wear that would reminds her of Phil!Given that it was black I felt like this was the most obvious meaning? But idk… like I’m sure she has a brooch that has a connection to Philip?
Shame there isn't one of Archie and Lilbet together.She's really cute. Looks very like Harry in the picture with Meghan.