Ignore the workshop method and devise your own in the field. Actually, share if you can. I think the concept is great and please add if you already seen/know a bushcraft technique.
OK, I can't work out how to get a YouTube link from the mobile app to here. Search for "making wooden tarp clips" the author is "Matthias Wandel".
Sorry for not having a link, and If you know how please add it, I'll replace this rambling with your link.