On the last day, dress up the student's lunch bag with colorful stickers and personalized labels. Be sure to include a note to tell them how proud you are, or us the note to reveal a summer vacation you've been planning.
When I was in elementary school, a pool party was always in order for the last day of school. Don't have a pool? Set up sprinklers in the backyard and provide beach balls, hoses and water balloons for kids to cool off.
Treat the student to an ice cream cone right after his last class! Dress the treat up with fun dessert picks.

Do you have any last day of school traditions? Be sure to share them!