Pam,

Pala casino in Southern California gives the customer the "option" to donate the chance to a charity of their choosing. You could save the receipts to cash in at the cage, but you either have to have them add up to whole dollars or give them change to bring it up to whole dollars. They have to do all of this manually, as they cannot just scan the tickets. The whole process takes 15-20 minutes depending on how many tickets you have.

What a pain.