I'm not the only one who's this late so I feel less bad! If you should be in this list but I didn't put you there, tell me because my memory sucks.
From Anastasia:
Kurando gets a simple Christmas card, with a reminder that she'll always help him if he needs something! And that she's available for marriage.
Russia got a photo of the Romanov Family all together \o/ After one year she still doesn't know countries are countries, but remembered Russia said he was a family's friend, so she thought he'd like it. I'm assuming she totally had one in her photo albums so let's handwave how she had it in the first place \o\
America gets his own photo album, with photos of the weirdest creatures on Camp! The cover reads "Camp Fuck You Die's dangerous aliens creatures".
Yuri also gets a card, except in his she wrote he should follow Kurando's example and become a true gentleman.
Karin gets a card and a ring!
From Switzerland:
Liechtenstein got a new ribbon!
Echo got a swiss knife, which is most definitely an appropriate present for a loli.
Conrad got sugar-free chocolate, together with a message thanking him for allowing him and Liechtenstein to stay at the cabin.
In an effort to be social, he also did something for the rest of his cabinmates, but I'm out of ideas, so, just think of something small and cheap (because he's stingy)!
All countries except Austria got a simple Christmas card. Austria got chocolate from him, but he just left it at his door and didn't put any kind of message saying it was from him.
From Black*Star:
Black*Star being the person he is, pretty much sent everyone he has ever met his autograph. Actually, he sent that to people he has never met, too.
Additionally, he improved John's bible by writing things like "Black*Star is awesome and amazing" in every single page, plus "The amazing Black*Star is greater than a God!" on the cover. Because he's just that amazing.
From Rolo:
Lelouch got
this chess set.
Though he considered giving presents to some other people, he decided against it in the end.
From Xion:
KH cabin people got a necklace with a seashell pendant (everyone has a different seashell), together with a letter thanking them for being kind to her and having welcomed her there as soon as she arrived. She also wrote that being able to stay with everyone is the best present she could have asked for.
Additionally, Roxas gets a new wristband, and Axel a red scarf.