Teri says:
I used about 80-90 yards per fall so there's about 180 yards of plastic clipped onto my head.
They're mounted on metal spring clips - so I clip them above my buns and hang them down over them or wrap the plastic around them. The plastic is mounted on braids: I tried doing it with straight out plastic when I started, and that ended up looking TERRIBLE! The braids give a decent base, allow for some flexability and better movement of the plastic, and gave me more body.