Wedding Favors To Help Charity

Hi !
I donated to pet rescue ( they saved my cat ). When I told them what I was doing, they offered to print out cards or stickers that matched my wedding colors and would size them to fit in or on my favors stating that a donation was made for each guest....ect ect ect. I don`t remember the exact wording. They were willing to taylor the colors, size and shape of the card to match anything I wanted. I haven`t seen the final result yet, but it should be fine. I am giving a small favor ( heart shaped soap in an organza bag ) and putting the card inside. I`m sure other charities would do the same. I really didn`t expect them to do any of this. I thought I would be responsible for the cards. I`ll cover it by adding to the donation just to be fare, but they sure made it easy for me !