We make woven and folded containers on our Cordage & Containers day and sometimes we have a little left over. This was the case on our last such course back in June and whilst the bark had dried out it became more than pliable enough to make a plaited bark strap after soaking for a short time. In this case we’ve used it as a strap for a folded bark container, but equally it would work as a strap for all manner of items.
You can see photos from our cordage and containers courses, where we will often make a plaited bark strap, as well as all of our other courses, on our Facebook page.