The toughness/badass nature of the pattern probably appeals to a lot of girls who like the juxtaposition of feminine pieces and bolder ones. In that sense, I can see why they're so popular.
The second accessory that I've been semi obsessed with is the hat with ears. Hands down, so cute. Definitely not everyone's cup of tea but I think it can add a whimsical element to an otherwise bland outfit.
I could easily see the black hat being worn with an all black outfit. It would add so much more dimension, in addition to texture.
As always, let me know down below what your thoughts are. Any in particular that you liked?