For the maker in you, a pair of anvil cufflinks. Show the world that you work IRL, even if you don't have the arms of a blacksmith.
While plenty of people walk around advertising brands with large "LV" or "G" logos, we're not quite convinced of the merits of Giffen goods. Sure this happens to be GothamSmith's logo, but we want our goods to stand on their own in a purely aesthetic sense. It's not cool because it's our brand, but because in some ways, an anvil is the original no-logo design, in this case carefully crafted by Miles Begin in collaboration with GothamSmith.