well, seeing as he bought about 20 loud hailers / megaphones with built in siren effects a few months ago i'd be willing to bet they are made from them rather than maplins kits.
But this is a bit of a tricky subject isn't it? I'd be the last person to defend S-Cat as in my humble opinion he is an idiot with massive delusions of grandeur, but just because someone has found a way to do something simply, which people will pay a lot of money for, doesn't necessarily mean that its a bad thing.
Was the guy who bent a bit of wire to make a paperclip just cashing in on peoples stupidity? Anyone could have done it but they didn't.
I would agree with you totally that selling crap for absurd money isn't really appreciating the 'spirit' of what circuitbending should be but Its a free country, if people want to pay ridiculous money for something they could build themselves in about 20 minutes or just because it has some bits of wood bolted to the side, then thats entirely up to them.
Not wishing to sound like i've got my head up my own arse here, but i just can't be bothered to build stuff thats really easy to put together and sell it for absurd money, as its just really boring. Which is why circuitbenders don't make many circuitbent toys anymore. Most people on this forum could probably do exactly what S-Cat does and probably do it better, but I for one just can't be bothered with it as i'd rather do something interesting and build quality machines rather than throwing together a siren circuit, doing a few tweaks on it and sticking it in a box with some chunks of wood nailed to it.