Livestock Wristbands

Isn't it great that English Premier League players wear those wristbands to show their support to charity organizations? I heard it's supposed to be absolutely free, and when I mean free, it's really free (even shipping is free). Well at least in the UK. I mean why the fuck make it free? Couldn't they like charge £1 each or something? Maybe it's a marketing concept....
Well if it is, it's working....I want one...