You’re a dreadful person in general so oh well.

Maybe she could get the peace sign turned into a sun for her son, with the outline being black and the inside being his eye color(just be sure his eye are done changing, like some babies eyes do) and the script redone to say something more for family, like “love you, always”.

If you want something sort of romantic, maybe a heart with yin and yang in it, but in the “eye” circular part, you put the positive and negative signs.
or if you want words, I think the phrase “opposites attract” may be appropriate.

Maybe a good place to start would be to really just remember your mom and come up with some key aspects of her life, personalty, and things you bonded over. If you lost her at an earlier age, maybe family members can help you with understanding her. Then take some of those things and think how they could be beautiful to you. Maybe this will help you get close to an idea.

I’ve only ever got one little tattoo on my wrist, and the pain wasn’t too bad. But there were a few sensitive spots. Deep breathing really helped me with those bits, so maybe some research on breathing techniques for pain relief could help you out.

I’m new to all this, but what comes to mind with what you want, is maybe the outline of a strong woman, wearing a U.S. flag as a dress or tank top and leaning against a rifle or some other firearm. Tastefully done, it could be a very beautiful design IMO. If this isn’t at all what you were thinking of, I apologize.