Becca of My Cat Lulu is a desktop publisher by day and an awesome custom card designer and printer by night. Purchase some of her cards and a percentage of the proceeds will be donated to charities like Amnesty International or through Etsy for Animals. And best of all, she happily accepts custom orders--like the first item I've included here.
Custom Note Cards, $30
Gocco Animal Card, $3
Gocco Peace Dove Note Card, $3
http://mycatlulu.etsy.com
http://mycatlulu.blogspot.com