I'm not sure this qualifies as a "Bad Super Costume", but I think it does a nice job of illustrating some of the problems inherent in using spandex as a covering material, problems most artists just gloss over.
Oh, who am I kidding, the costume is fine but I just couldn't resist posting this anyway for the sheer, unadulterated, nasty thrusting magnificence of the whole thing:
I think the flaps of the tunic fluttering back are a particularly nice touch, framing the ... area of primary interest quite well. Why do I get the feeling that his battle cry is nothing more than a series of cackling grunts and heavy breathing?