Machina Dynamic Brilliant Pebbles?

Man,

These guy are laughing all the way to the bank.

Wait until they come out with their "audio paint", should be a huge hit.

Wait just a second. How can you so easily dismiss this item? I know from personal experience it works wonders if you only believe. I dropped just 3 of these pebbles in my gas tank and my mileage seemed to increase! Just 1 in your toilet seems to reduce mildew. And, when I rub my arthritc left elbow with this thing for 1 hour, I can no longer feel my elbow.

You skeptics are missing out on the product of the decade.

I tried brilliant pebbles and didn't notice much of a difference (they look funny).

Matt pebbles were better; I think that's the version Danlib1 is referring to above.