No no no, scrap vendors deal on a bigger scale than this. You know, old cars and industrial leftovers and whatnot. It's not impossible that they'll receive a large shipment of short thin pieces of steel, but it's not likely.

Much easier to seek out common household objects, like the humble brassiere.

[He twirls he bit of metal he's holding for emphasis and then uses it to measure out a matching length of wire, and shears it off.]