Moving to a true pyro design, we have the
Stunning Camera. With some slight modifications to a single-use camera a stun-camera is born. Whenever someone tries to take a picture it gives them a mild shock (The video demonstration is pretty good).
PyroFactor: 
March 21st, 2008 at 3:25 pm
wow. I saw the video on youtube and I would really like to make one myself! Is
there any way you could email me materials and instructions on how to build it
because the video is hard to follow. Great job and keep up the good work!
March 21st, 2008 at 3:34 pm
Just click ‘read’ for the full article or go to it directly: http://www.pyroelectro.com/projects/stunning_camera/index.html
That should answer most of your questions.