I am trying to filter down which forms of tribal body modification to use in my final illustrations for my postcards. So far I have Scarification, ear/ lip stretching, neck stretching and body paint. I think These are good starting points and that four is a good number of postcards to do. I have done some more research into these particular topics so that I have enough information for the backs of the postcards.
In South Africa, women of Ndebele people (about 600,000), closely related to Zulu, wear also neck rings (photo bellow). The practice starts when they get married, around 12 years of age. But their neck rings differ greatly of those of the Kayan, because the rings are individual, so they do not press against the rib cage and do not produce the impression of the elongated necks.
Ndebele women traditionally adorned themselves with a variety of ornaments, each symbolising her status in society. After marriage, dresses became increasingly elaborate and spectacular. In earlier times, the Ndebele wife would wear copper and brass rings around her arms, legs and neck, symbolising her bond and faithfulness to her husband, once her home was built.http://www.krugerpark.co.za/africa_ndebele.html
I've only had to briefly research into neck stretching to discover that it isn't really a common practice in African tribes, but more popular in Burma. It would then be irrelevant to use this as one of my illustrations, because it isn't a celebration of African tribal traditions which is what is the concept of the festival I am promoting.