Guliwamkulu are masked dancers from the community. They make their own masks. The identity of the individual should never be known. If in the act of dancing, a guliwamkulu lets his mask fall off and his identity becomes known; the mask is sent to a musuem (Mua Mission) for preservation in Malawi.
Guliwamkulu often made red masks to mimic the face of 'the white men'. Their plays and their dances would reflect their feelings toward our race and our western culture.
The closest thing I can think of as an analogy in Western Society is Mardi Gras. Down south in Cajun Country here I am from, it is common to walk into a funeral and see a masked person in a Mardi Gras costume; not wanting their idendity as an individual to become known to the small town morning a life.