I know about half the parts on the "prototype" one I have are standard electrical components. I'm betting if you took the picture to a hardware store and browsed the electrical isle, you'd find some of it.
On the one I own, about half the stuff is machined specifically for the part.
The light (which I'm assuming was the same on the prototype as on the screen-used one) actually pulses on its own. It slowly gows brighter over about a second, goes dark, and starts the cycle over. The switch is a small plastic button that is depressed when you screw in an end cap. I'm assuming the screen used one works exactly the same; you see the screw switch on the upper left of the first photo above.