I wrapped a dowel on top of a playgym (couldn't get it off) with natural, untreated sisal rope. It took a while to get it all the way around and nice and even but it worked great.
What about apple tree wood? It must be okay right? I think I can go to some local orchids here...usually they trim and have branches in garbage piles that I may be able to make something of a table tree out of. Do I have to make sure all the bark is off? Do I have to bake it? If so, how long and whatnot? thnx