The most common Udu drum is the water jar type shown above. There are, however, many different forms that the Udu can take. Some include dual chambered models that offer varying pitches, while others are more flat and played more like a standard drum. Below are a few videos I found online that will hopefully, help you as you begin to learn how to play this instrument. You can also learn more about the Udu Drum here, or shop online and purchase an Udu of your own.
This is probably one of the better instructional videos I've found. It actually comes from a music program designed for children, so keep in mind as you watch that it is intended for a younger audience. It can become a little annoying at times, but overall he does a great job of showing you different techniques of playing and he even switches to a different Udu model in the middle. Definitely worth watching.
In this video, Janelle Burdell does a great job of telling a little of the folklore behind the origin of this drum. She also lays down a pretty mean solo.
Youtube user Manminus shows you how he made his own Udu from a store bought jar for ten dollars. I was impressed by how well it sounded. I will definitely be buying a jar to try this out.
This is a pretty decent drum solo that will show you a few different techniques and methods from those in the previous videos. These videos are a great starting point for learning how to play the Udu. You may also want to check out the How To Of Udu DVD for a more in depth approach to this drum.