'90s Halloween Costumes: Wayne and Garth From "Wayne's World" What to wear for Wayne: Black Converse sneakers, old, ripped jeans, a long brown wig, a black t-shirt, and a black Wayne's World hat. What to wear for Garth: Black Converse sneakers, washed-out jeans, a white band t-shirt under a blue plaid shirt with rolled-up sleeves, a shaggy blond wig, and black-rimmed glasses. How to act: Ask people if they want to come to your basement and be a guest star on your show. At some point you're going to have to sing "Bohemian Rhapsody." Image Source: Everett Collection