Peeta: The easel with the mostly finished portrait of Katniss the previous Peeta did still on it, along with all the painting supplies that she couldn’t bring herself to throw away. Plainly wrapped and dropped off inside of his apartment.
Prim: A book on medicinal herbs.
Richard: A pocket watch locket with a picture of her and Prim inside, along with a note asking him to always keep it on him so he doesn't forget them if he ever is sent back.
Rue: A small bow of her own with some arrows, and a note promising to teach her how to use it.
Effie: An invitation to move back into the house.
Clove (and Cato): A blank journal with a note on the first page explaining her family's plant book and suggesting that Clove and Cato start a similar tradition.
Teddy: A book of love songs with lyrics and music.
Zevran: A damascus knife for hunting.
Jim: A big pot of stew and an offer to take him hunting with her when he's feeling better. If he wants. He can refuse. That's also written in the note.
Henry: The bow he gave back to her and a note offering lessons once again.
Aang: A baking cookbook.

If you think that I'm forgetting yours, please let me know. Katniss - while having a lot of CR - would only get things for people she feels closest to.