What is the Silliest Accessory You Have Ever Seen.

What's worse, cheap stuff from Machina Dynamica or expensive stuff from SR. Usually the only thing more ridiculous than the product is the marketing claim. But audiophile pet pebbles takes the cake. So many of these products are just the result of someone with a questionable understanding of electricity and physics convincing people with even less understanding that they developed a perpetual motion machine.

tomic601,
In comparison to your posts, oldhvymec's seem to make sense. 

I own and have always been highly impressed by the Shakti’s! One of the best additions I have made to the acoustic treatments in my room. Why the OP has to ’assume’ that these do not work is interesting, perhaps because looking at them they do not look that impressive ( although once placed even that is debatable). BUT since he more than likely has NOT heard what they can do --it gets back to the old aspect about those that ’ass of u and me’..
There are a number of other mods that are questionable ( and yes, I have heard these!) , some of which have been mentioned already, but in the case of the Shakti’s...they are a bad example.

"Got to admit the worst is the GeoffK phone call. At least it was only $60."

For $60 you get to chat with geoffkait? Not as expensive as some 1-900 numbers.

Everything works just fine...until someone actually listens to it.

Therefore:
The silliest accessory is us, expecting perfection, or something akin to it.