This is not Margaret's parents' kitchen, this is a bar.
". . . I could not possibly have done this on accident."
"Ooh, maybe. And if I can't then that's interesting information about spellsilver. Does the intelligence headband come in fabric?"
"Not that I've seen but I've heard of charisma cloaks as a variant on charisma headbands."
"Would the official term be a Cloak of Vast Intelligence, if it existed? I could try that first and then fall back on the charisma one if it doesn't work, or I can just do the charisma one first so we know."
"These aren't as standardized as all that but it's what I'd call it, yes. You can also stack up all three kinds in the same item, that's what my brother-in-law's crown does."
"Ooooh. That would probably take a diagram three times as big, though, so I'll try a cloak with the intelligence-only version first." Can Bar sell her a nonfunctional version of a magic item so it has the lead bits in the right places and everything?
Bar can sell her a cloak and all the lead she could want but the combination is not doable.
"The lead isn't itself functional or woven in or anything, the magical property of spellsilver is sucked out of it into the material. I just don't know how it's done."
"In that case, I guess the thing to do is to try with a regular cloak and call it conclusive if it succeeds but not if it fails. Which is kind of how it is with me doing magic in general; there are a bunch of ways things can go wrong and it's rarely obvious which one."
"You don't have... diagnostic spells or anything? - you should make spectacles of detect magic, that's what you should do."
"I have this ring that shows when I'm suppressing a bad result but it doesn't say what the result would have been. Magic-detecting spectacles sound excellent; what kind of detail do you get from them?"
"I don't myself have any - detect magic is a cantrip, they wouldn't sell, the people who want to see magic can do it all day long."
"Nifty. What sort of stuff about a spell does it pick up on?"
"Don't know much. I don't need it to do what I do, I come from the jewelry end, not the spellcraft end, and people can only cast it on themselves. I know it can tell if something's magic or not, and what kind, and how strong?"
"That might be good for distinguishing between 'bad spell design' and 'not enough power' but I think I'll work on intelligence enhancement first."