The number of Snowflakes a Habbo had was shown in the top right hand corner of the screen and they could be spent through December and the first few weeks of January. After that period of time, the Snowflake Gifts section was removed from the Catalogue and Habbo's Snowflakes were wiped, regardless of whether they had been spent or not.
When Snowflakes (and the gifts) returned in December 2011, Sulake made a mistake with one of the Snowflake gifts. The 'Boar Head' was purchasable for a mere 10 Snowflakes, but could also be traded which begs to wonder whether they were meant to cost Credits too or just be untradeable. It was thought that after the festivities and Winter period the Boar Head would no longer be tradeable - many were wrong and you can often see them in Credit shops on Habbo today.
Unfortunately, Snowflakes didn't make a reappearance during December 2012 on Habbo, thus leaving users wondering if they would ever return as a seasonal currency or not.
Snowflake Gifts were introduced to the hotel in December 2010 and were reintroduced in December 2011 to coincide with the Christmas celebrations. The gifts were available from the Catalogue and required Snowflakes to purchase them. To earn Snowflakes, players were required to complete various quests. Users were given the entire month of December to both earn and spend any snowflakes before they were removed at the New Year. With new quests released daily, users were able to build up quite a supply of snowflakes. Although not all items were made to be tradeable, users still continued to use multiple accounts to earn more prizes. Only two gifts released into the catalogue required users to spend credits along with the snowflakes earned, these were the Cool Club Sofa and Blizzard Dragon.