Rogue Hoe

Rogue Hoe makes garden hoes in Cabool, Missouri out of worn-out agricultural disc blades — the steel discs that break up soil behind a tractor until they are too worn to cut, at which point most of them are scrapped.

That is the whole product: high-carbon tempered steel that has already proven itself in a field, cut and welded into a hoe head. The origin claim and the material claim arrive in the same sentence, which makes this one of the easier records in the catalogue to stand behind.