OK, an advanced warning. The Christmas items will be tanken down on January the fifth. So if you're thinking of buying one, make sure you do it before that date. Different holiday themed items will be put up in their place at around valentine's day.
However if you wish to buy christmas items now and save them for a rainy day, you're very welcome to. Just please make sure you keep a record of them and remind the staff when you want to use one. I would reccomend putting the thumbnails or an items list in the EXTRA section of your journal. Or set aside a post for a pet inventory.

::Candy Cane:: 500g
Will turn your pet red and white or give it a stripy design.

::Christmas Star:: 500g
Will turn your pet blue and gold.

::Wrapping Ribbon:: 500g
Will give your pet a hair ribbon or a bow around it's neck.

::Jingle Bells:: 1000g
Will give your pet a musical intrument of your choice.

::Five Gold Rings:: 1000g
Allows you to customise your pet's jewelry in it's next stage.

::Milk and Cookies:: 5000g
Allows your pet to grow without the Roleplay requirements. These are limited to one per pet.

::Snow Flake:: 500g
Will turn your pet icy blues and whites.

::Mistletoe's Kiss:: 1000g
Let's you decide your pets gender early.

::Santa's Gift:: 500g
Allows you to get one item at random. This includes lineart edits and familiars.