I use 5 to 15 strands of thin yarns, two kid mohair, one or two silk, and the rest is cotton. I switch colors and tie knots every few rows. This is how I get my color blends, and it actually takes me just as long to make a winding as it does to machine knit a wrap. There are lots of color changes and knots. The last trip to Istanbul I bought an electric yarn winder to give my wrists a bit of a break from my hand winder. I am still getting used to the tension, so here and there you may get one thread that does a loop. I usually ignore them and just knit them in as I go. I am winding twice to give the yarns a bit of a twist, and to help with the tension.
I go to Istanbul a few times a year and purchase kilos of kid mohair yarn. I buy by touch, only the softest and best colors. I then add silk threads and cotton yarns that I get right here in Rīga, Latvia. They are hauled by truck from Italy a few times a year. ALL the yarns I use are upcycled, recycled, basically excess stock, off dye lots, a bit thicker or thinner.