What would you use for hair similar to CPP Crimp 'n Curl?

[sd_dreamcrystal]

I figured I'd get a better answer here than I would in the Pony Corral. For the longest time I've been wondering what the hair is made out of on a Cabbage Patch Crimp 'N Curl  Pony.

I'm pretty sure there is no wire used in the material as it doesn't hold like a wire would if you style it and while I have a recent CPP Crimp 'N Curl, I'm still unsure what it is but I want to find out for it I have to restore on of these girls at some point or take a CPP Fakie (not an actual CPP) and turn it into a similar kind of pony... or even for a regular MLP o.o

[Sarahlacewing]

Ghost describes it as waxed yarn.

[sd_dreamcrystal]

ah I see... Hmm except I wouldn't quite describe the hair as yarn but it gives me an idea of what I can do