Buy cool items with Sprite Rewards Tokens! They're available in the Limited Quantity Item Mall for 99 AP each, and give you one of three random Tokens -- Wings, Mount, or Costume.
You're limited to buying one per week -- the Limited Quantity store refreshes each week.
It's simple! Just collect enough tokens of the right type to redeem a desired reward listed below, then send in an request ticket at http://www.aeriagames.com/contact/support with the title "Sprite Rewards Token Redemption," what item you want, and what it costs. Your tokens will be deleted when you get your item.