Elementary student Catie Grafton was inspired by a TV show about a child with cancer.
So she has donated more than 1,400 items, ranging from markers to toys, to a hospital for its young patients.
"Knowing that I'm helping other kids, it gives me a good feeling," she said.
She's been helping AdventHealth for Children in Florida.
She collects donations through her Facebook page, Catie's Helpers.
Tap the video above to find out more about how she's making a difference.