guys help me out here, can anyone think of a good cosplay to do with three people?

there a con in nottingham for the first time this year (well march, this school year) and i might go with two of my friends from uni (its about five minutes from my house, we’ll probably go) we’re going to try brainstorm some ideas – its only a day long event but looks like it could be very cool

(for heights; I’m about 5’6 one friend is about my height (he’s maybe an inch or so taller) and our other friend is 6’3 if that helps any -its probably a hinderance though. There’s a wide variety of interests and a general willingness to watch new stuff which should acctually help)

obligitory question mark?