the shaped trees I'd sent information on months ago... where they formed trees into chairs.. prople and other shapes ... they now have their book out as a how to guide of making these..
types of trees to use .. methods and techniques and such are all in the book...
ifyou're interested in a book... try this link to get to them http://shapedtrees.com/?page_i...
yes...they have supplemental information available for their tree shapes.. after consideration of the 20 years they have had their first ones... considerations of such matters is the art of it