Just to confirm...
Livestrong (Lance Armstrongs Cancer foundation) ONLY come in yellow, any other colour with 'Livestrong' no is fake.
The anti bullying bands that come from the BBC are blue.
The white bands are for oxfam, they are not directly related to the tsunami, the money is just for oxfam as a charity HOWEVER since all of oxfams money and resources are going to the tsunami... i guess you should still get one for this reason.
The pink bands are for breast cancer.
Also, dont pay more than about £2 if your looking on ebay. If you pay more than this you are contributing profits to the people selling them, which is sick and wrong.
Cheers, sam