I was looking for some videos of an udu a Nigerian pottery drum on youtube and came across this video of a guy named Dante Bucci playing a hang... I did a little searching after that and found they are nearly impossible to find and when you find one, they are very expensive. If I come into money, I'll begin a serious search for one. There is a similar sounding but very differently designed instrument called a Hapi drum that might be an interesting substitute that is a lot easier to get and much less expensive. Anyway, here is the hang (pronounced hung)
I do have an udu - the drum that started the search - and it is a lot of fun. It is the drum I'm playing in the song on the player at the right called heartbeat.
here's a video of a guy from the Albany NY area named Brian Melick who is a wonderful percussionist who plays a lot of udu. He is playing 4 different sized udus at once. Normally, you'd only play 1.