Halloween is October 31st, and it has been October 31st every single year without exception, which makes the annual "I don't have a costume" panic both completely avoidable and somehow universal. Here's the thing, though: a last-minute costume doesn't have to be a bad one, and a low-effort costume doesn't have to be boring.
Some of the funniest, most talked-about costumes at any party are the ones that took twenty minutes and a single Amazon order to pull together, because a genuinely good idea executed simply will always beat an elaborate costume that nobody quite understands without an explanation. This list is proof of that. Every costume here is easy enough to put together without losing your mind in the process, funny enough to hold its own at any costume contest.