Killua and Billy will be giving this year.

If Killua given your character something then he generally likes them or finds them interesting enough to warrant a gift.
Killua's gift list
Xanxus - Customizable Dart Board (you can put pictures in it) and darts
Lussuria - Fashion Design kit
France - Oil paint set
Envy - Hair Sticks
China - Chinese Yo-yo
Ritz Malheur - Voodoo doll with rapier shaped pins.
Edward Elric - Travel Journals
Bakura Ryou - Ghost type papercrafts
Marui b - Large Chocolate tennis racket set.
Russia - Alcohol flask
Mitsuki - Patch work plushie
Lucifer - Patch work plushoe
Asura - Unsigned Christmas Car card C<
Cobra Comander Unsigned Christmas Card C<

Billy is giving those he likes handmade Christmas cards with a golden coin. (The coins are real gold.)
Vincent
Fluttershy
America
Applejack
Daisuke
Rarity
Lunaa