A simple demonstration should be enough for some noble somewhere to be willing to throw down gold for it.
"Hi, I'm Dannyalcatraz, and I'm here to show you the most amazing sword you've ever seen: it slices, it dices, it eviscerates! It cleaves and sunders! And it never rusts or needs sharpening! You can cut through an Antipaladin's mithril shield and the indestructible blade will STILL slice this tomato into vellum-thin slices! How much would YOU pay? Well, act now, and receive THIS special gift: ArmorOdor Eaters! That's right!! Now how much do you think this is worth? HOLD UP! There's more..."