Designer label Marni (marni.com) will sell a series of six limited edition T-shirts at its boutiques and virtual store this holiday season to benefit Mani Tese, the non-governmental organization founded in 1964 to promote the social development of the world’s poorest and most underprivileged populations in Africa, Asia and Latin America.

The six different graphics, which will appear on shirts for men, women and children, were created by street kids in the City of Guatemala, Recife in Brazil and Piduguralla in India’s Andhra Pradesh region. For this special project, which was launched earlier this year, the kids were asked to draw self-portraits. Marni then selected its six favorites from the 7,000 drawings it received.

The shirts will be on sale from November to December.

This is not the first time Marni has supported children’s educational and development projects. Two years ago, its holiday shopping bags were decorated with artwork created by children from all over the world, a program that allowed it to support street kids in Colombia, Tibet and India.