Karen Smith Im a Mouse Duh Mean Girls Exclusive Costume

Karen Smith Im a Mouse, Duh! - Mean Girls Exclusive Costume. The Costume SavantKaren Smith probably won't be winning any awards for kindness... or smarts for that matter. She's often the most clueless member of the Plastics, but you have to admit that she has an amazing style sense, especially when it comes to choosing a costume! In fact, she may just be a complete savant when it comes to creating costumes. She learned one of the natural rules that it took us- Karen Smith Im a Mouse, Duh! - Mean Girls Exclusive Costume.