What’s your vote for the most ridiculous, overpriced, and useless tweak?

Pretty weak post, glubmeister. Maybe eat more Cheerios.

After reviewing the bidding I don’t think we have a clear winner yet that fits all three criteria, ridiculous, overpriced and useless. On the other hand I haven’t been paying very close attention. Maybe we should go for best two out of three. 

I vote for salt Himalayan lamp for the most ridiculed of tweaks...

The only problem I bought some used for peanuts and the light is gorgeous and they add sparkling aura to the sound if the light switch is "on" ...  Gosh! I was surprized when i forget to open the switch to "on" sometimes and discover that something was missing in the air...I discover an audio forum in china where some say the samething than me about this salt lamp ...Then this is the most ridiculed tweaks for sure not the more ridiculous at all...My best to all...

I humbly add Feng Shui and Orgone. 

What about my vote for the Maxiimus P16?

ridiculous - a glowing crystal pyramid powered by two "tachyon accumulators" housed in a tin box.
overpriced - 1800 Euros
useless - it generally makes the sound worse, smears focus and destroys the soundstage.

What’s more, they promise a "flow of electrons" from nature and electrons don’t even flow.

http://www.kempelektroniks.nl/en/918/kemp-elektroniks/products/shunt-conditioners/fostac-maxiimus-p1...