I thought that the wrist knives of the Turkana were no longer used but I read recently that they still use them. Apparently, some other tribes in Sudan have adopted them as well.
Even though I think it's a cool idea, I also find the weapon very scary. I certainly wouldn't want to be at the receiving end of a blow from someone wearing this knife.
As far as I know, weapons are very important to the Turkana tribe and they have other original pieces too, like finger knives.