I am pretty sure foundry makes some
link
http://www.wargamesfoundry.com/collections/GPR/2/index.asp
indeed - in 2 different packs
I would be curious to know if there are others too, since I am a cattle fan myself
btw
there is no "african" cattle
both versions (with and without hump) are not indigenous to Africa and were introduced from Asia in different times and over different ways
both are spread throughout africa, however we are used to regard the humped subspecies as "african"
and they seemed to have been more widespread between pastoralists like Zulu or Maassai
the reason for that may be the many pictures of dead cattle struck down by rinderpest in the late 19th C., of which the humped type was more susceptible to the disease
I also like the looks of the humped
bos indicus for african kraals, though I know that they are not the only ones