My favorite Disney character of ALLLLLL time is Robin Hood. Love him! <3 So I was thinking of Disney bounding as him. On Pinterest, I'm seeing lots of hunter green shirts with leather accessories (leather bangles, boots, etc.). Looks fun!
You certainly don't have to Disbound as a princess. I know that's not something I wan to do. lol You can pick any character. Buzz would mean you wear white with blue accessories or a blue cardi, and then you can style jewelry around the various colors of buttons he has. Maybe a bright red bangle bracelet for his laser light.
Just focus on the overall color blocking of that character, and then dig in your closet to see what you have.