We already have a BS thread about the vuvuzela, some of which isn't really BS at all.
Here's another one. I just got a copy of the CD re-release of the Nonesuch LP H-72066 from 1975, "Kenya and Tanzania: Witchcraft and Ritual Music". Field recordings by David Fanshawe.
There are two tracks featuring an trumpet called the "bung'o" - one "soprano", the other with an extension tube to make it an "alto". There's a photo of it in use, and the "soprano" seems to be just a metal vuvuzela by another name.
The unnamed player on the CD uses it to make a mixture of whoops, signal-like calls, and something approaching melodies. Far beyond football-crowd technique.
So I guess the thing has a long history in Sub-Saharan Africa, and the religious sect that was complaining about its appropriation by football fans might have a point. (I doubt if Israeli football fans blowing massed plastic shofars would get away without being grumbled at by guys in beards, either).