OK, so it’s not actually a tutorial–it’s a chapter from Oakland martial arts instructor Sid Campbell’s 2006 Warrior Arts and Weapons of Ancient Hawaii that’s freely available in its entirety on Google Books. I found Campbell’s book after seeing one of these lei o mano, as I think they are called, in a Discovery channel program. Before hiking to the library to check it out I thought, what the heck, I’ll see how much is available on gBooks, and was surprised to find that the chapter on shark-tooth weapons, which goes into great detail about the various traditional methods of preparing the teeth and attaching them to the handle, is all there. Thanks to Mr. Campbell and his publisher. If you’re into it, please consider buying the book.