How to Make Hosiery (pantyhose) Yarn aka Harn
Just because you get a run doesn't mean they're trash. This article provides detailed step-by-step instructions on how to process hosiery into yarn for any handcraft project.
Lay the ironed tube on cutting surface and fold the bottom up to within about 1/2" from the top. Begin cutting strips starting from the bottom fold up to 1st fold. This leaves that 1/2" area to top fold uncut (what I call the spine). (NOTE: The width of the strips are determined by your project needs). A typical width is 1 to 11/2" wide.
Because this is such light weight material, I would suggest running a afghan hook, knitting needle, etc. through the middle of the spine separating the layers.
To make a single strip/continuous strand, place your scissors at one open end of the tube, cut the bottom off of the first section just under the spine.
To make a curl, take a section of the strip in each hand and pull. You will see it curl right before your eyes. Then move on to the next section and repeat until you have reached the end of the strip.
Tips & Warnings
Pantyhose is a very user-friendly, light weight material making it easy to cut through multiple layers at one tme. I've not had any difficulty lining up seems.
The panty section can be used for other household cleaning projects.