Making drums from naturally hollow log

Arbutus trees (Pacific Madrona) often have a very hard outer case, even when the center rots out. I was clearing some ground clutter on a path, when the hollow trunk was discovered.

Last month, I watched a documentary, where native Australian women went through the bush tapping on hollow trees in search of honey. One prime specimen was taken home by an elderly lady. Her husband used it to make a didgeridoo, for the education of the youth of the village and to add something to the documentary.

When I saw the log, I immediately thought of the didgeridoo, but realized that the girth of this log is better suited to making drums. 

Several other pieces were cut, but cracks and other defects make them firewood. The largest defective one was retained by my tree service customer. It will be a planter, with one end buried in the soil.
.........
 I shopped the idea around to several people and today someone is going to take them and make drums.

 I won't be able to post sound, but I will post photos of the finished product when they become available.