There are many non-profit organizations that use the money to raise endangered animals from the wild. You could start a fundraiser by having a yard sale, a rummage sale, even a lemonade stand.
Some human inventions have been taken to help the snow leopards, for example certain zoos have taken them and with there care have lived much longer. Like Shimbu, 20- year old snow leopard at the Melbourne Zoo has lived twice as long then if she was in the wild.