While sometimes suffering under poverty, sickness and oppression children are at the same time active participants in creating the society and culture in which they grow up. Therefore, children's culture should be rightly recognized as an integral part of the tangible and intangible heritage of humanity.
As far as I could find out, the UNESCO program for safeguarding the tangible and intangible Heritage of Humanity (http://portal.unesco.org/culture) does not contain any project related to children's culture. Under the section: Intangible Heritage of Humanity: 90 representative elements (http://www.unesco.org/culture/ich/index.php?pg=00011) I found nothing on children’s cultures or play and toy cultures and only one link to children: the Kankurang, Manding Initiatory Rite, Gambia - Senegal. In this project only the role of adults is mentioned.
I am looking forward to find other anthropologist interested in promoting this recognition of children's culture, especially children's play and toy culture.