A comparable but somewhat divergent situation obtains in South Africa. Here colourful beadwork is a feature of contemporary life (no.49). Different combinations are characteristic of different regions but sufficiently formulaic that they are expressive of common upbringing. The same systematicity has been applied to hairstyles , such that Zulu women, for example, have a series of local styles. Earplugs are similarly nuanced (no.50). This is an old tradition, first elaborated with the use of plastic overlays on the circular disks in the 1920s, and which later made use of vinyl flooring materials when these were introduced (fig. 80). Among the most prolific of modern decorative arts is that which has developed among the Ndebele, especially the Ndzundza Ndebed .