1. Log in to Stardoll
2. Go to this page:
3. Set the country to Russian Federation
4. Click on one of the Rise Of The Guardians themed parties (you can see how the background looks in the picture below)
Once you've succesfully joined the party/chat, you can close the page.
The elf should be in a Rise Of The Guardians bag in you suite.
P.S. It might take some time for the item to appear in your suite. :)