Originally Posted by fearn
I'm guessing here, but the first two bows look like they are from Papua New Guinea, while the third bow is more likely from Africa. If the strings on the first two bows are flat, rather than round, that increases the chance, while the leather string on the third one tends to signal Africa to me.
As for the arrows, I'm leaning towards Papuan for those as well, particularly due to the lack of flights and the apparent lack of an arrow nock at the butt. These go with the flat strings.