This is going into the category of expensive item avatar.

You need to collect all the stamps on the snowy valley page. This list is:


Snow Wars Catapult Stamp - 1,250np


Rainbow Slushie Stamp -1,328np


Frosty Snowman Stamp - 7,800np


Wintery Petpet Shop Stamp - 9,000np


Wintery Bruce Stamp - 15,000np


Christmas Meerca Stamp - 11,200np


Terror Mountain Scene Stamp - 10,000np


Igloo Garage Sale Stamp - 9,000np


Rink Runner Stamp


Christmas Kougra Stamp - 9,985np


Christmas Uni Stamp - 2,440np


Christmas Zafara Stamp - 10,000np


Scratch Card Kiosk Stamp


Candychan Stamp - 8.5 nillion np


Grundo Snow Throw Stamp - 27,999np


Stocking Stamp - 8,777np


Cliffhanger Stamp -- 200,000np


Christmas Scene Stamp


SHFISS Stamp


Negg Faerie Stamp - 150,000 to 180,000np


Snow Faerie Stamp - 40,000np


Ski Lodge Stamp


Snowager Stamp


Snowbunny Stamp


Sticky Snowflake Stamp - according to the board, it's 20 million np.

The price may have changed because of the demand from avatar collectors. I won't be collecting this just based on the price of that candycan stamp and there are some unbuyable. Some say it will cost 50million np to get the whole set. Unbelievable.