From plastic bottles you can make not only an ottoman, but a whole sofa. From personal experience I know that padded stools can withstand a man, weighing 80 kg (tested on her husband) freely. If they are covered with a filler, they do not creak. They are light and very comfortable. I advise everyone! You can tighten the ottoman with your skin, cloth, or you can tie it with a crochet. How to make an ottoman and pattern scheme – look under the cut.
Pull the bottles with scotch tape