I do! I think I shared one a while ago, but here are a few:

-I think they look very similar. He worries that he'll forget what she looks like, but can see parts of her in the mirror. Which is both painful and wonderful.

-I think she loved him for as long as she could with as much as she could. I don't think she ever made Goro feel undesirable; that came later from foster homes and his own interpretation of the past, rather than direct words or actions from his mother.

-she would sing him to sleep, and he can remember snatches of the melody, but not the song itself. He hums it on his own to soothe himself, the same notes over and over.

-she gave him a stuffed toy that he treasures. I go between either he lost it moving homes, pretending it didn't matter but it hurts like losing her again, or he still has it, but keeps it locked away. I've used both in different fics :)