After viewing Eminem's smutty and infantile new video, and seeing a clip of Nicole Kidman's salacious new movie (both which prominently feature children), this Bible verse came to mind:
"Yea, it were better for him that a millstone should be hung about [his neck], and he should be sunk in the depths of the sea, than that he should cast a stumbling-block before one of my little ones."
Post-Halloween Aside: Not as extreme as the above examples, but I think it's out-of-line to use wee ones to model these "costumes."