Halloween Costumes can be Revealing!
Notice how the little girls are dressed in "feminine norms" including a princess and queen, while the boy's costume has more masculine characteristics, including the bow and arrow as a symbol of aggression.
Source
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"All sizes | Cute Kids in Children's Costumes | Flickr - Photo Sharing!."
http://www.flickr.com/photos/epsos/3767729028/sizes/m/in/photostream/
Flickr
CC BY 2.0.