Gullible Americans are spending $299 on a plastic sticker that purports to save petrol and clean exhaust fumes by sending "holographic frequencies into the gas tank and chang[ing] the molecular structure of the gasoline." Ah, too precious.

Cheaper at only $16, but no less full of hogwash, is the Machina Dynamica Golden Sound Intelligent Chip, which claims to 'upgrade' all your CDs and DVDs so that "The sound of the upgraded disc more closely resembles the sound of the orginal master recording, with less congestion, more information, greater dynamic range and more air." It seems that all you do is put the chip on top of the CD/DVD player whilst the CD/DVD is playing and within 2 seconds - yes, that's just 2 seconds folks - the disc is 'upgraded'.

Apparently "The GSIC-10 is good for 10 discs, the GSIC-30 for 30 discs. Once the Intelligent Chip has upgraded the prescribed number of discs it ceases to function and can be discarded." Or, in fact, skip that step and just discard the chip from the off. Your CDs will sound just as good as after treatment.

Sadly, the site doesn't give us a hokum pseudo-scientific explanation of how it works, which is always the best part.

(Thanks Rojisan for the pointers.)