You could take them to your local Humane Society or favourite non-profit. They could sell them as fundraisers. I worked with a girl who made cards and sold them at our vet clinic's reception desk. All profits were then donated to the SPCA.
I do the same with cards, OWT, RFKC and other organizations that I send the cards that I make. I am going thru chemo and I make cards for all the staff there. They have been so good to me! Where do we send the cards so you can take them to your chemo unit!
A really great place to send your cards to is
You can look them up. They have a great website and often include some sketches and sometimes have nice contests with good prizes for those who send cards.
Ditto: Operation Write Home is perfect for your request. I started sending them this year; although cards were not my favorite items to make. Now I send them regularly. Cheryl