Above and below are step by step instruction showing you how to cord. These are to be included in a forthcoming publication featuring a project of mine, part of Cultuur maak(t) je, a programme of event and exhibitions at De Domijnen curated by Joanna van der Zanden and Jeanne Van Heeswijk. More info on the project here.
Natural fibres would traditionally be used to cord yarn or twine but recycled plastic bags, cut into strips, would be ideal for this too - see previous post. Have fun experimenting with this while doing your bit to save our oceans from plastic pollution.