[diajoh]

This child mummy appears to open and close her eyes, but it's an optical illusion due to a changing light angle. I expect it is rather like the eyes that follow you around the room. In any event, it would be a static prop that might cause a yelp. Here's the story:
http://io9.com/why-does-this-mummy-appear-to-open-and-close-her-eyes-1593924806?fb_action_ids=10152897225709056&fb_action_types=og.likes