all of my completed ocs are present-day earth humans, so no special story about festivities (sorry!)
the black/andersen family unit
kate kind of hates christmas - she has a habit of ending up in jobs in which she works on the day - but sticks on a smile, going the extra mile for her daughter. after all, rose has always quite enjoyed putting smiles on faces by handdrawing christmas cards, and she gets full artistic control over the christmas tree: believe me, that's always a colourful vision... it's become less tacky over the years, though. crafted decorations all round (kate loves rose's enthusiasm, and out of parental sentiment, kept every deco the teen's made.)
during the winter season, rose always gets more art commissions from friends/relatives so has a little bit of her own money to splash on her mother: all year round, she goes on the hunt for vinyls/miscellaneous band merchandise that kate hasn't got yet - a tough job, considering she used to work in a music store. meanwhile, kate saves up to buy rose some art supplies (or concert tickets, if she has enough). the two know eachother well, and always find a way to make christmas a pleasant experience.
up until recently, vince (more like grinch, amirite?!) has spent all his christmases alone at the boxing club, having even less enthusiasm for christmas. of course, he sends cards to his parents and always bought a little something for his roommates out of obligation, but never participated in christmas dinner nor the tree-decorating. his roommates acknowledged this but knew to find him, drop off a little present and leave. but now vince is reunited with his high school sweetheart and new-found daughter, it looks like ol' vinnie's gonna have to start joining the festivities.
cass and annie (uni students, bffs to end all bffs, ex-foster sisters. bubbly asexual full of bad ideas and a 500%-done-with-everything, mythology-loving lesbian to ground her.)
uni students are broke, there's no denying it. resultantly, cass and annie spend all year saving money for a special treat - an extended gift to eachother, basically - in which they stay in trafalgar square (a hotspot in central london with extensive christmas decor) for the night. really, it's the best of both worlds! cass, being a photography geek, takes photos of the giant tree when the lights are switched on... and chinatown's a few minutes' walk away: sadly, cass defies general weeaboo concepts and has a borderline-fetishising penchant for anything east asian. annie calls her out on her shit (not that cass ever listens), but they go and explore for the sake of, well, travel. for annie's enjoyment, there's the national gallery (a free gallery full of art 'belonging to the public') in which she can nerd out and culture herself... her favourite painting there is this one of roman goddess venus.
[[i'll come back later for an edit, i wanna think up isobel's attitude to christmas]]