What can be some punishments/rewards for people who are late to class

BRAINSTORMING

1. 3 WARNINGS AND THEN 1 MARKS OF EACH ASSIGNMENT
2. REWARD IF YOU SHOW UP ON TIME
3. FREE BREAKFAST EVERY MORNING FOR PEOPLE ON TIME
4. REWARD CARDS X10 FREE MOVIE TICKET.
5. ON TIME FOR THE WHOLE YEAR GETS (FREE CLASS TALK) FREE I POD
6. HUMILIATION IN FRONT OF THE CLASS.
7. IF YOUR LATE HAVE TO WEAR A DUNCE HAT AND STAND IN THE CORNER
8. IF YOUR LATE EVERY LESSON FOR THE YEAR YOU BUY EVERYONE IN THE CLASS COFFEE.
9. YOU CANT ATTEND THE CLASS IF YOU ARE LATE
10. LOCKED OUT OF CLASS TILL BREAK.