Logos from comic book titles and such. These all have tranparancies, so keep that in mind.(Im not sure why you should, but do it) The preview images are atleast half the real size so thay will fit here. They work great for fanart backgrounds.
Superman and Batman are the property of DC comics and Warner Brothers.
Xmen Punisher Rogue and Black Widow are the property of Marvel Comics.
Spawn and Gen 13 are the property of Image Comics.
Judge Dredd is the property of Rebellion.