What are some good pranks that I can do at the beginning of school? I can't wait 9 months. :P

If there's a lab room, go in when no one's there and piss in all the glass vials.

Get a couple guys and steal a bunch of old/scrap tires from a junkyard or some other tire place. Pile them in front of the front doors to the height above the door frame. It'll keep your school busy for a little while.

Molotov everything.

1: Superglue porn everywhere (actually superglue everthing)
2: Stink Bombs (did this it's funny as hell)
3: flood school (difficult but possible)
4: scatter open condoms everywhere, better yet superglue them to doors, lockers, ect...
5: Seran wrap toilet seats (I did this one I just wish I could've seen their expressions when their piss didn't hit the water it just bounced lmao
6: Shove stuff in locks (not paperclips or staples they can get those out in 10mins, fill lock with superglue or superglue something over lock my friend did this and he missed his whole class)
7: This one takes planning but if you can release a couple of hundred crickets they should breed and be very loud and guarantees epic lulz for months
8: Good ol fashioned graffiti
9: Shoot out windows with bb gun (go in the middle of the night)
10: birdseed outside should bring in flocks
11: Universal Remote (PSP's have a universal remote if you have one)
12: Again porn everywhere would be fucking hilarious

No it would not. GTFO.

And OP, just do what you did for your "end of school prank"...?

The end of the year prank last year at my school seemed to be "come to school drunk out of your fucking mind". Unfortunately, I was too stoned to participate, or to show up to school at all.

Go to school.

this 5char

I'm doing that the first day lol