The Treehouse (FTW???)

Okay, I know that gaia is trying to lure back their inactive members and all but
The Treehouse? What the heck is THAT?
Where do you even find those stickers?
In my opinion, I wouldn't even trade my stickers for a pair of shoes.
Can anyone explain to me what exactly is "The treehouse"?

Its a store where you can trade stickers in for the items there before they opened the stores they said collect as many as you can and i went on everyday to collect a sticker to see if the item that i get for the stickers was worth it not at all... i think they said that there wont be anymore stickers till later so..

During events you are given the opportunity to gather wing stickers.
You can go back everyday and collect one.

The tree house items are basically event items I guess.

The question has been answered can a mod please lock it?

oh, I see. I haven't seen any wing stickers so far, though.
Thanks, guys.