Any use for old capacitors?

[zildjian]

A potentially shocking subject...
I've got a bunch of old capacitors from rebuilding amplifiers. Does anybody know of anything that can be done with them practical or just for fun (without shocking someone or yourself!). I don't know why I kept them in the first place. I mostly just kept the larger filter caps, not the small caps. There is probably nothing wrong with most of them anyhow, I just want to do a complete recap if I'm going to do one, but I hate to dispose of them if they could be used for something else.
Brad

 

[Mr.BBQ]

You could get a bunch of cheapo drivers and have yourself a ball....It's what I'd do.

 

[zildjian]

You could get a bunch of cheapo drivers and have yourself a ball....It's what I'd do.

HA. that'd be fun. I used to do that with cheapo drivers I'd run across and one of my big power amps. It'd just smoke the coil usually.

I've already drained the charge out of all the capacitors, I think. That'd be a quick way to find out. or.... Anybody used to stick their tongue to a 9V battery to see how much charge it had? Anybody want a capacitor the size of a soda can to do that with?

Still open to suggestions...

 

[catacon]

Not practical, but you have a fireworks show by connecting them backwards. Quite fun, but I've only done it with smaller caps, not big ones, so that could be deadly.

I'm sure you could make some kind of art out of them.