Zephyrus will be sprouting hyacinths. They'll be trailing behind him and one will grow from his forehead like a unicorn horn.
Anything Abel touches will start growing orange poppies. So, because he is not the streaking kind, he'll probably look like he's wearing a suit of them. He will also be eating a lot of poppy seed muffins, since they are unaffected.
Nephthys gets baby's breath growing from her hair and finger/toenails. She will most definitely keep ripping it out and screaming over the pain.
Frigg is unaffected and actually really upset about it.