I was getting frustrated that no one would return my homework, but I also don't want to take away recesses or punish if they don't - so this was an extra incentive for them to do so! We've hit the late-springtime, but pre-summer lull and it was time to get the kiddos back to work. I made up two sheets of lottery tickets. One was "Sorry! Not A Winner" and another contained a few prize tickets (a trip to the prize box, an extra sticker, a new pencil, or a piece of candy!). Each time a student returns his/her homework, he/she gets a scratch-off.