Originally Posted by d_D
You could just donate to the charity instead. If you can afford a CK headset you can easily give plenty more than the $2 CK gives per headset.
However you wouldn't get a cool pink headset.
I think CK will give $5 and I even found an eBay seller who is an official CK vendor who will match the CK $5 donation.
FWIW, I have already donated to the Canadian Breast Cancer Foundation.