List of samples of funny graduation messages to sister:
1). Dear sister, heartiest wishes on your graduation. I hope you remember your promise for the treat in the most exotic hotel on your success and to remind you the day is today.
2). Dearest sister, good luck on your graduation. Make sure you wear the best outfit with the graduation robe to also look the superb one with the highest scores.
3). Dear sister, good wishes on your graduation. This is to remind you that you owe me two treats now for your birthday as well your success today and I won’t spare you this time.
4). Lovely sister, congratulations on your graduation. I hope you have the money to treat me for your success as I would like to have it only in the best restaurant in town.
5). Sweet sister, I send you beautiful gift for your graduation. Make sure you keep it this time and not lose it or else you won’t ever receive any gift from me.