Hidden camera needed to attach to a display

Hi everyone!
I'm doing an installation at a local business in which a webcam is needed to capture data and change the content playing on a 42" display. I'm looking for a small camera that can not be seen by the consumer that can attach to the display located about 10 feet off the ground. The camera will need to be connected to the computer behind the display and running during normal business hours. Any suggestions? Thanks!
 
most lipstick cameras can be easily concealed in something ie. tissue box, stereo speaker, etc.. just got to be creative.
 
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