I was working on a coil gun and needed to be able to dump a lot of power very quickly to generate a decent sized electromagnetic pulse.

What I did to get the capacitors was I went around to my local film devloping places and collected their disposable cameras.. then after a hour or two of shucking cameras(and afew good jolts) I had all the capacitos I would want. Then to put it all together I used a few scraps of plexiglass and some scrap wire and it was done.... and a little scary.