From Playonline.com:

That's right, folks! Mog Bonanza, the event adventurer dreams are made of, will soon commence!

Have your deeds of late earned a smile from Lady Luck?
Will your new year prove to be just happy, or happy and moggy both?
Your hopes for Vana'dielian bliss rest upon those gleaming orange spheres known as bonanza marbles!

Learn about the Mog Bonanza here.

*Marble sales are scheduled to commence on Thursday, December 24 at 00:00am (PST).