Gardner said she gets her cards from the Las Animas community.
"I get cards from people all around the community," Gardner said. "I also buy cards wherever I can find them, like Amazon and local stores in town."
Now with a full-blown operation on her hands, Gardner is always on the lookout for extra cards.
The freshman said anybody can donate cards to her.
"I always put my return address, and I put some return labels in there," Gardner said. "I also have a stamp that I put my return address in each of the cards. I'm always taking extra cards."