Steel bar end caps. $5, and not for the gram counters, but if you have bullhorns and flip the bike over a lot for storage, on-street repairs, or whatever they are indescructible compared to plastic that gets scraped up or cracks. You can also bend the little prongs that go into the bars, helps them fit chopped bars way better and you can get them tight enough so that they're never going anywhere without a screwdriver to pry them up. Look great, too. It's a little thing, and most people wouldn't even care, but there's something about having a piece of plastic right there on such a prominent part of an otherwise bulletproof street machine that doesn't really have the feng shui ne sais quoi, knowwhuddImean? Probably the only thing on that frankenbike that isn't pure function, but they're staying.