Sometimes people take Method acting a little too far.   Fairuza Balk, one  of Vanity Fair's "Hollywood 97" covergirls, who played a teenage witch in "The Craft," certainly has.  The preview issue of the new Dossier  magazine reports that Balk has bought the Panpipes Magickal Market Place in Hollywood, which sells everything from cauldrons to chicken feet and  black candles.   A growing number of celebs have become regular customers.  Located in what used to be the Hollywood jail, the shop is attracting a  growing number of celebs as regular customers.