Piglet's Playground is a popular children's play area located in many shopping malls across the United States. It features a variety of activities for kids, including a ball pit, slides, and other interactive games. The term 'STY' is an acronym for the phrase 'Safe To Youngsters, ' which is a safety certification given to the playgrounds by the American Society for Testing and Materials. This certification ensures that the playgrounds are safe for children to play in.