Hey Mark,
I am generally aware there are paramount deforestation and environmental issues throughout the world. Unfortunately I am not informed enough about specific timbering practices in various places and what is sourced where. Personally I have chosen to nearly only use domestic woods. I have made a few exception though.
I like black bog oak and have sourced some from the UK. It's difficult to get though. I'd love some more. I also enjoy the patterns that some of the palms can generate. Red and black palm would be cool. One of the woods that says America to me more than many others is hickory. I've yet to find any with grain of note though. If there's such a thing as figured hickory, like crotch or burl, I'd jump on it.
Being in Hawaii, I've thought of working with ray, shark and eel skin/leather, but haven't pursued it. A couple of different times I started looking into getting some, but I didn't know what was what, so I just let it go. Maybe some day though, especially if I could get it from a friend.
I'm just a small frog in a big pond though, so don't go out on any limbs on my account.
All the best, Phil