What's really neat about this is that while the designs for everything revolve around select cards from the XY era, the items aren't all solely for TCG-side of things (ie. deck shields and so on) but include fun things like keychains and even a beach towel. The full list for the prizes is as follows:
Prize A: M RayquazaEX Jumbo Bath Towel
Prize B: Pikachu Coin Cushion or Damage Counter Cushion (30cm in size)
Prize C: Carabina Pouches (4 types)
Prize D: Double Deck Case (M GyaradosEX Type or ShayminEX Type)
Prize E: Keychains (7 types)
In addition to this, entrants have a chance of winning a Special Prize slot, which consists of a Collection X or Collection Y booster box. This is super neat because Collection X and Collection Y aren't currently stocked in Pokecens, as it's been out of print for a while. You can check out shots of the prizes below! I definitely want to get some of these when they come out; it's so nice seeing unique and different goods revolving around the TCG!

Prize A: M RayquazaEX Jumbo Bath Towel

Prize B: Pikachu Coin Cushion or Damage Counter Cushion (30cm in size)

Prize C: Carabina Pouches (4 types)

Prize D: Double Deck Case (M GyaradosEX Type or ShayminEX Type)

Prize E: Keychains (7 types)
Resource(s):
Pokemon.co.jp