Check out these stickers featuring everyone's favorite Pokémon: Piplup! Its adorable expressions will bring smiles to you and your friends. The set is titled: Today's Pochama Stamps (きょうのポッチャマスタンプ)
and is part of Project Pochama. A total of 40 different types of Pochama stamps are included, showing various expressions such as greetings and thank you. The set costs 250 yen.