For decades, homeschoolers have joined other educators to incentivize reading using free pizza coupons. Available for students ages 4-12 (preK to 6th grade), the Pizza Hut Book-It Program allows parents of homeschoolers to set individualized reading goals for their children. Those students who reach the goal are rewarded with a Personal Pan Pizza. How fun is that?
Details, along with free resources, can be found here.