I had an idea once, but it died of loneliness.
Due to an offer I couldn't refuse, I sold many parts of 2021's get-up at the last minute to some-one who waited to the last second
for a chance at their workplace Halloween Party Contest (They wound up being Fox-lite from the Masked-Singer season 1, no picys yet).
Basically I just donned my usual SP uniform with a little nicer kilt than usual and a Civil War coat that is a tad to tight for me to keep.
Nothing fancy, over-the-top, crafty. For me, this is like one step short of gluing a gear-on-it-and-call-it-steampunk.

And I just showed up for work. Look! I'm still sleeping!

Our HR assist wanted a picy, I'm like OK. Sure. Evidently I entered a contest here, and wound up on the Company intrAweb. LOL. After a day of working with High Voltage capacitors, mechanical chest thumpers, and paper-work, I am off to the pub next-door.
Its a day like this that helps me appreciate what I do, where I do it, who I do it with, and most importantly who I do it for.
I hope your Outfits (excruciatingly planned or as last minute as a black pointy hat and a broomstick) help you to a Happy Halloween.
Cheers! - gregor