Disney fan @vaeshawn did just that when he and a friend dressed as Max and Roxanne from "A Goofy Movie."
You can make the same costumes with clothes that are likely already in your wardrobe. For Max's look, you'll need jeans, a black long-sleeve top underneath an orange T-shirt, DIY ears, and makeup to re-create the character's nose.
Roxanne's look requires jeans, a blue top, similar makeup, and vibrant orange hair.