Costume Ideas 2024 Men Formal. For a formal wedding, you and your band of best men/ushers might choose to wear traditional top hats and tails. These classic costume ideas are a staple of everything that is halloween, and they’re sure to be a hit at any halloween party.

Barbie was last year’s hottest costume and we predict it’ll be going strong still this year. A formal event without a tuxedo doesn’t sound right.