Oh man, I can't believe the school (I grew up in Port Townsend) both offered a Joint Stool From A Tree course earlier this year and didn't get enough signups for it: http://www.ptwoodschool.com/joint_stool_from_a_tree.html
I would absolutely love to do that. The book is a great read -- the basic premise is that you can build furniture from green wood in such a way that the drying of the wood will lock your joints and strengthen the stool: http://www.lostartpress.com/Make_a_Joint_Stool_from_a_Tree_p...