Poundland's VERY annoying spooky Halloween lights.

These lights are not only very loud and annoying, but they strobe the lights continuously when they're lit. I'm sure they'll appeal to some people, but they'd drive me nuts.
Fortunately you can whip off the caps and make things better.
One interesting thing is that they use a piezoelectric disk for detecting vibration and sounds to trigger the cacophony of noise.

If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.