It\'s not a .gig, but I have some recordings of a rainstick that you could make into one. Send me an email at home (mschiff@*NOSPAM*cdsol.com) and I will try and find them. (remove the *NOSPAM* from my address)
If you want to hear what they sound like, listen to the song \"Canyon Journey\" on my mp3 site.
Its probably too expensive if all you want is the rainstick, but Heart of Africa (spectrasonics) has a really really great sounding rainstick, with about 10 different played sounding patches. Really ambient, like... rain! lol