go to this website - http://www.daxo.de
This Germanic-like bloke Hans Reichel is bloody fantastic - he invented the daxophone ... which is one of the most expressive instruments I've ever heard in my life. It sounds like the human voice and then ... like nothing I've ever heard of before.
Also - to make a Hank drum - go HERE.
find Rod Cooper on the net ... there's one youtube that show's a beautiful creation or three of his.