Rex?
This costume won't actually give you the power of flight (sorry about that), but it will certainly make you stand out from the crowd the way that a big flying reptile would stand out in a group of birds. Short of cloning them through fossilized DNA and bringing them to life, we have no way to know what they really looked like (and certain blockbuster movies suggest that the cloning option is a bad idea). never seen.After all, a flying dinosaur can swoop out of range at any time, which is a huge advantage.