Is Sony ripping off costume entries for LittleBigPlanet?

Sony is facing some angry criticism for allegedly copying Sackboy costume entries and selling them on as DLC. The costumes Sony offers are believed by some to have been designed by non-winning entries to a costume contest, being sold without due credit given.

Official PlayStation forum posters have pointed out the similarities between Sony's DLC and fan-designed costumes, which include the Shark suit Destructoid talked about a while ago. You can check out the similarities here, and they think you will agree that they're incredibly similar, to the point where it could almost be considered blatant.