[Tonmeister2008]

Here's a good one.Play this MP3 track which is they claim cancels the deafening vuvuzela horns used at the current World Cup Soccer Match. 
 
Science not included. 
 
Cheers
Sean Olive
Audio Musings

 

[Head Injury]

Only 2.95€.
 
What, no 30 second sample? 

 

[Ham Sandwich]

It probably sounds exactly like the anti-tinnitus sound therapy sounds (only tuned to a b-flat drone buzz) that you can also buy for 2.95€ with no preview sample available and no science to back it up.