Advertising Council Japan (社団法人ACジャパン) / Old name: Japan Advertising Council (社団法人 公共広告機構)
A non-profit organization that creates public service announcements. A recent one called 'あいさつの魔法。' ('Aisatsu no Mahou.', 'The Magic of Greetings') features characters with pun-based names and distinctive onomatopoeia, 'ポポポポ～ン' (Popopopoon). The original animated short is here. Artists have started to create personification images of the animal characters.