go to school in the middle of the night with your friends (10 or more) and draw huge penises on ALL of the chalk boards and/or dry erase board.
graduate with honors if you cant figure out your own prank you are to stupid to function on earth
Get the girl with the std to sleep with all the seniors.
Good idea right?
do what the Great American would do but with sharpie so it doesnt come off and get strippers for the school and put them places where it would be hard for them to get down