Wow. I was surprised to find a thread on this. Every winter I order more from Tower and think. I should just make my own. I attempted using the sock with out much luck. Any idea what material the hanger 9 ones are made of? They have sort a furry texture to them. I found that plain cotton will scratch the clear surface. Especially on black covering.
Another material I try burned... So I gave up and thought I won't try it again until I figure out what material the real ones are made of.