"It is a bitch ta polish," was Circe's instant response to silver, "But probably easier ta find then whatever Cold Iron is. Though lots of prayer beads are silver so maybe its the holy that works against spooks?" Circe decided to write that down.
Circe shook her head, "Not a fan of Ireland are ya? Apparently before Disney came along Tinker Bell was an evil soul stealin' shit that gave the devil a run fer his money. And hated iron, like Kryptonite levels. There are also lots of stories about demons laughin' off his from anythin' that ain't wrought iron," Circe taps a pen on her notebook. "Probably relates ta iron and the rise of civilization or that bronze bein' shit next ta iron or something like that."
That was a good explanation, and probably a source of some legends of invulnerable foes. Far better then telling him yes dude fairies are real and you want to get as much cold iron as you can carry if you meet a True Lord of the Fae. "But I've also heard stories about vampires where ya gotta stake 'em at a crossroad, chop their head off, and then torch the corpse. So there ya go," she shrugs having made a point about something. Well she felt she had made her point to Nathaniel.
As for the museums being ignorant that made Circe suspicious of them too. But she had to play the trusting mortal. So she held up a hand to stop and shook her head, "Not necessarily dude. Do ya really think some crackpot scientist is gonna be allowed to fuck with the Shroud of Turin ta check fer it bein' ECO of LECO? I think handcuffs would be more likely."
Circe pouted, full lips and sad eyes that juju was shot down. As for this whole finding and testing things, Circe could guarantee some magical items. Maybe a dried up piece of Goblin Fruit she'd found at a exotic fruit stand? Or a Hedgespun object that was harmless? Not like the mortal across from her could do anything with a magic item. "So make up a voodoo ritual and scan all the parts with a science lab?" She nods her head slowly, "Yeah that'd get expensive real fast. Might be easier ta find a cursed item since folks would want ta get rid of those. Or a," she makes air quotes, "Haunted house. Woooooh," she makes the appropriate ghost sounds and hand gestures.
That did give her some thoughts. Iron ore dust could actually be useful for messing with Them, maybe if mixed with an irritant? "Powder bombs?" Oops she said that out loud, "Yeah, just have like a ninja smoke bomb of all the stuff and maybe throw in some peppers too. Just in case," she left unsaid what it was in case of. "Blessings would probably work too. There's gotta be a reason why holy water is the go to for fightin' evil spirits in so many cultures. Or it could be the priests being holy," Circe looks to Nathaniel with a shrug, "I don't know dude."
Circe then gasps as something enters her mind. Or returns from the depths. When her mouth open next she was doing a Ron Perlman impersonation, "Holy water, garlic, white oak, silver shavings. The works," she laughs, "Oh ho ho, ta imitate that big red devil we'd probably need an elephant gun."
As for his offer, "That's good ta know man. I'll let some of my friends that're inta this stuff know. I'm a novice myself fer this juju jams," being Italian Circe is gesturing a plenty as she speaks. As for testing targets, how could she suggest that?
"Oh, hey not all legends are good, right?" She perks up as the thought occurs to her, "Cursed shit could be found on e-bay if somebody is anxious ta ditch it. Or somethin' used in a genocide might have enough nastiness ta leave a stain on it." Though she doubted it would be easy to find something like that outside a museum as most would have been destroyed. Or in some crazy idiot's shrine to said genocide.
Circe could get behind stealing from the latter. She then snaps her fingers, "Opposite! I'm pretty sure ya can by Vatican blessed rosaries. They'd be expensive but that kinda holiness should leave a trace."
ooc:IIRC RAW does state that a rosary blessed by the pope would be the kind of thing to give someone a bonus against ghosts but only if said person was themselves a believer. Hence why priests are better exorcists then bakers.