Some children in Rio created a toy favela (slum) in a vacant lot in their neighborhood. Here is a very interesting article with photos.
Apparently, the main benefit to the kids (now older teens) is the opportunity to learn video shooting and production skills from the documentary folks who have come to cover their art. They have begun producing animated videos for Brazil's Nickelodeon channel. Here is a sample of one of their episodes which, at less than 1 minute, is presumably MUCH shorter than the Nickelodeon show.