Aesthetic enhancements to knobkerries include embellishment of the sphere with studs or complex faceting, and attaching beads, wirework or leather around sections of the shaft. The contrasting patterns inherent in wood were also often exploited in the design of the form, and the surface was polished smooth to heighten the colour and grain of the wood. Such aesthetic considerations applied particularly to ceremonial knobkerries, such as these, rather than to the often-seen functional versions used for hunting and defence.

The similarities and subtle differences in the basic form can also be ascribed to regional and ethnic considerations. Some groundwork in this regard has been undertaken (see L Hooper, 'Some Nguni crafts - part 3: wood-carving', Annals of the SA Museum, 70(3), pp194-198); however, we have no meaningful understanding of localised styles across south-east Africa.