BTW Sachs says another word for it is "umcunga" - he doesn't say in what language. Googling says that's a Brazilian word for "mouth bow" and that appears to be what Sach's description is of, rather than a kazoo. That is, the vibrating element can be a string rather than a membrane.

According to Wikipedia the upanga in South India is a bagpipe used solely as a drone. And their meaning for it Swahili is "sword".

http://208.47.228.196/Collections/search-the-collections/500767

The Grove Dictionary description is a bit more illuminating:

http://themusicdictionary.org/nyastaranga/