Atom Hub has released Gnat Shepherd, a free vuvuzela sample collection for the Native Instruments Kontakt software sampler. This little whistle sampling came out quite interestingly and although here you get only one patch and in spite of all being said about nasty sound and gnats, it sounds nice and I believe can be useful. Gnat Shepherd is available for free download via Atom Hub (22.5MB download size, contains 4 audio samples in 24-bit WAV format, 1 instrument in NKI format).
The instrument is based on samples of a cheap plastic vuvuzela. There are four round-robin variants included to ensure a natural sound. The custom Kontakt mapping also includes built-in effects such as reverb and flanger.
You will need the full version of Kontakt in order to use the provided NKI file without any limitations. The included WAV samples can be used in virtually any software sampler, though!
Audio Demo Check out the Gnat Shepherd audio demo: