This video shows a Kyudo arrow (bamboo?) in flight .... I'm sure there are others, but whether they're tonkin or something else I dunno.Would also be great to get hold of some slow motion video of bamboo arrows. Do they paradox the same as a parallel timber shaft or not? Slow motion may be the only way to tell but I can't afford a slo-mo camera!
I don't think that they are allowed in Longbow or Traditional GNAS styles, so I won't be using them. The rules state that arrows should be made from wood, and since bamboo isn't wood the arrows aren't legal.