The Toast Babies 💕
Their daughter is very much like Katniss - quiet, headstrong, loves nature and music - and follows her mom everywhere, trying to emulate her. She has a sharp wit that could have only come from Peeta, and no one can make her smile or laugh like he can. She takes it upon herself to look after her brother, of course. She has a meaningful nature-related name like Arden (meaning “a place of solitude and great beauty” like the meadow from Rue’s lullaby in the books).
The little boy is rambunctious and outgoing. Truly the baby of the family and a ball of endless energy. He is interested in everything and wants to know how everything works. His favourite word is "why?”, but luckily his parents and sister never seem to get tired of explaining things to him. @jenniferiawrence named him Atlas in her fanfic Give Me Your Wild, and that always stuck with me/seemed like a lovely name for him so credit goes to them for that headcanon, haha!