I am touched by the beauty and simplicity of your card. As a breast cancer survivor I can relate to how nice it was for your friend to receive such a heartfelt gift.
It might be possible to leave your cards for all of the cancer survivors who are undergoing treatment. They really need "thank you" cards at this time because there are so many people working to help them. Feel free to visit me at Projectgivethanks.wordpress.com for more information.