Quest from Gaga.
1. Hunt 10 Mardi Gras Bead Necklace from ANY monsters.
2. Talk to Gaga to complete the quest.
3. Gaga will give you 1 Green Mardi Gras Feather. ( maybe give random colour)
So.. what colour mask you want, what colour feather you need to get.
You need 10 feather to exchange 1 mask and the mask is only available for 5 days.