i have a lot of smoking/drinking ocs but Fabbu is kinda iconic... people probably find it more odd to see him without a cig than actually holding one. it's kind of "his thing" even tho he hates the smell itself and only really does it to calm himself down.
Out of a sudden I'm curious to see what OCs smoke and/or drink.
michiko and gesaku smoke cigarettes. michiko drank once and got drunk and never tried drinking again. she is a heavier smoker than ayami and gesaku combined - she smokes like 3-4 cigarettes per day. ayami vapes.
michiko smokes weed, too.
most of my characters smoke + drink, save for the really obvious ones who wouldn't [DARE taught Manslaughter to say no to that stuff, Shrike doesn't like it, and my ignored warrior cats wouldn't know what it is and would die from it.]
although if i HAVE to list a character who drinks... a lot, uhhh Noel does. he's a recovering alcoholic, but he's still not really doing too well. [a plus for living in the middle of nowhere without a town in a four-hour driving distance would be he cant get booze easily--]
Camilla also drinks and smokes a lot, and is also pretty much bordering alcoholism, and also to the point where her voice is kind of messed up. she really likes beer.
Maribelle sometimes smokes and drinks, but only when Raphael gives it to her. she doesn't really like smoking though-- neither tobacco or weed. [weed might actually freak her out if she ever tried it rifp]
This one smokes like a chimney. He makes a special blend for himself so that it smells more like incense.
It takes a lot because of his horse lower body metabolism but he likes a good strong liquor or getting wine drunk around a fire!
Drinks regularly and smokes on rare, very stressful, occasions (a habit she picked up from her last job.)
All my characters minus the tbn feral quad drink + smoke, but they specifically smoke marijuana and are of age. They all prefer smoking over drinking, minus Charlie who often has to drink for work purposes, and stay alert otherwise so smoking is more a leisurely thing and not daily for her. Dylan smokes to help themselves be more social and deal with their depression, while Aubrey does it because they enjoy it and it makes their mood swings less prominent.
Multiple characters of mine fit the bill, but as the resident easygoing hedonist, Reggie fits the bill most. She's a lifestyle stoner to a nearly obnoxious degree (though it does genuinely help her with trauma management). She's also a bartender, and does drink socially, but not heavily.
Additionally:
Harv and Daia are pretty heavy drinkers
Pho likes to drink and make merry with friends on occasion, but it would take so much to get him drunk that it he rarely ever is.
Tobias used to smoke like a chimney back when he was human, but he's since cut the habit, and alcohol as well. He's very focused on health and clean living these days.