I have a magnet tutorial as well. ;)

You can't create a magnet from something, unfortunately; if you could, this sort of thing would be a whole lot simpler.

I should expand on what I said earlier. Hair from the hair library should be straightforward - but conforming hair, like some of Koz's that lives in the Figures library is a different matter because you have also to adjust the joint centres.

As an example of what's possible, have a look at my Flo Hair. This conforming hair comes with a set of poses which will fit it to Posette; Vicki 1, 2 and 3; The PreTeen Girl; and Maya Doll. These operate by setting scaling, a morph target (made with magnets) which adjusts scalp shape, and adjusting the joint parameters. If you have conforming hair to refit, you can try the Flo fitting poses - they should get you reasonably close, maybe with a bit of magnetization to finish off with.