When I was doing electrical experiments I would go to local labs and ask for used disposable cameras with flashes and cannibalize them for the capacitors and charging circuits. I would advise against this as I got electrocuted like 20 times over the course of these projects.
Originally Posted by AgX
I Also used the glass (plastic) lenses from these to make sharper home made (pinhole) cameras. I got some great results. -Again don't do this as you could get a lethal zap from the capacitor when you take the camera apart.