DIY curls Without Heat! by DIY curls Without Heat! Simply take an old shirt, pillow case, nightwear.. Any kind of fabric. Cut into strips preferably long enough for you to tie a bow. Next separate your hair into sections just like you would do if you were about to curl your hair using curling irons. I recommend wetting your hair then taking a section and placing the fabric strip on top at the bottom of your section and begin to wrap the hair around the fabric, after you have reached the top simply tie a knot in the fabric as if you were about to tie your shoe laces. Simply do this method with each section and then sleep! DIY RAG CURLS!