Comedy - 123 Halloween Costume Ideas
Funny costumes work by committing fully to something a little ridiculous. Elmer Fudd's hunting cap, the Wet Bandits' pure incompetence, Hulk Hogan's mustache, the joke only lands if you play it completely straight.
Timing helps more than the costume itself here. A funny costume worn with a deadpan expression gets a bigger reaction than one worn with a big grin, let the outfit do the joke.
A few of these need a specific prop to land, most just need confidence. Half-committing to a comedy costume tends to just look like you gave up halfway through.
It helps but isn't required. A deadpan delivery usually gets a better reaction than an over-the-top one anyway.
Pick something with a strong enough visual gag that it's funny even without context, a prop or expression that reads on its own.
Most are simple. The comedy usually comes from one exaggerated detail, not a complicated build.