This is a great way to manage student behavior. When I use these in my classroom, I give a ticket to a student if they receive a certain amount of points on Class Dojo. On Fridays, I have a time set aside at the end of the day for students to cash in their tickets for a prize off my wall. They may also save their tickets for something bigger!
They can be used for anything that you would like! Behavior management or even content related activities and games!