You trade 10 Gold Bits for 4 Brass Horseshoes.

Roseforge: "Each horseshoe's got an empty gem socket, in case you want to enchant them. And if you need help putting 'em on, make sure to give Lucky Smith a visit down the road, just west of here. The house's got a giant horseshoe on it, you can't miss it.

Anyway, was there anything else?"