If you want to wish someone a Merry Christmas and a happy New Year you can also say Bonnes fêtes de fin d’année or just Bonne fêtes.

If the gift is clothing or jewellery you can add Je le porterai ce soir/demain soir.– I'll wear it tonight/tomorrow night. Or if it's something for the house you could say Il sera parfait dans la cuisine – It will be perfect in the kitchen.

Hi everyone!
Thanks for what your doing: as a French, I like this different perception of my country!
A small mistake got into your script: in section 6,you should have LE réveillon instead of LA réveillon.
I wish you all a merry Christmas!