[@Sep] How about something like this?
[center][img]http://s13.postimg.org/dbr663fpj/hulklogo.png[/img][/center]
Almost every and any logo I find comes from Google. I write in the name of a superhero followed by "logo PNG" and see what comes up. That Hulk logo is actually from a tree service company that was clearly trying to cash in on the Hulk brand/style. I cropped out the "tree service" bit because I can't imagine you'll be having Banner get into landscaping anytime soon.