Classroom B-day idea. or just a great community builder mid-year. This is seriously one of the sweetest ideas. If there is no smartboard in your room maybe you could do it with large bulletin board paper. Then they could keep the kind words.
This costs - but why not recreate it? An end of the year writing activity to set summer break goals - how cute is this! would be a fun activity at the beginning of the year too but to set goals for the school year!
This district has laid out each part of the CCSS and made a unit/scope and sequence to go along with it. They've made a lesson for every part of the core FOR EVERY GRADE! You can find all of this on the district's website ( just click the icon)
Homework club- If they turn all their homework in on time, then they get to stay in the club! If they don't then they are out of the club. Students who turn all their homework in for the entire month get to come to the monthly homework club lunch.