Do you pass out stickers or tickets for certain things such as participation, doing something without being asked, etc...? I allow my students to spend their tickets at the end of the six weeks on things that don't necessarily cost me any money. Laminate the page, cut each one out, tape onto ribbon so it hangs vertically and attach it to the wall with a push pin. Super simple and the kids LOVE it. I tied this in with saving and spending- they did not have to spend anything if they didn't want to. This is editable so feel free to change the rewards to fit you and your class- I have included 3 different versions (stickers, tickets and rewards). For small erasers I used the pencil top erasers and the big erasers were the traditional pink erasers.