I use this as an incentive for students that need a little extra encouragement to get work done. They get 1 pass a day, or 5 passes a week, to use on any assignment they would like. I do not allow my students to use them on a test but you can make your own rules! They could be used as a reward or however you see fit in your classroom and for your students.
I have the same design in homework passes in my TpT store!