Tear out the last 2 pages of the current book your roommate is reading. Then leave a note in the pages place. Send your victim on a scavenger hunt to find the pages.

If you know other students in the same dorm building as you that just leave their door keys laying around then this is the perfect prank. While they are away, take their keys off each others key rings and swap them.

If you know someone who has a very messy dorm, this is a great prank. While he or she is away sneak into the dorm and clean it. Make it spotless. In cases of extremely messy rooms you may need a couple of friends to help you out.

Wait until your victim is in the shower. Take down the curtain that is in his room. Then go outside and draw a crowd of passer by's. Tell them to keep an eye on what is going to appear in the window.

While your roommate is taking a nice warm shower dump a bucket of ice cold water over the top of the shower curtains.

Ask your roommate if he has ever seen a match burn twice. He will say no. Then you show him how it can be done. Simply strike it up to show him the first burn. Then when it goes out and while its still hot, quickly place it on his skin. After he says, "Ouch!" Tell him that is the 2nd burn.

Next time your roommate is leaving back home to visit for the holidays place a metal object that is the shape of a gun inside of his luggage. If you know how to use machines in shop class, this should only take a few minutes with some scrap metal.

Roll a snowball up as big as you can make it. 3 feet or 4 feet tall is perfect. Then get a couple friends to help you set it down in your roommate's room while he is area.

While one of your roommates is taking a dump in the restroom, light a napkin on fire and toss it in the restroom from the window and yell FIRE!!! Then, seconds later you and a couple of your buddies toss gallons of water from big buckets all over the napkin and your victim!

Fill your buddy's dorm room with crumpled up newspaper...fill it all the way to the ceiling if you can!

Apply some clear tape to your roomie's eyes when he is sleeping, wake him up, and and ask if he feels all right.

While your roommate is sleeping, place a couple of Red Hot hard candies between their teeth and lips. They will wake up with a very bad blister.

Staple the cuffs of your dorm room buddy's pants together.

Use appliance timers to detonate stereo equipment at high volume.

Write all sorts of nasty messages in permenant marker on a persons body while they are asleep or passed out drunk. Put them in hard to cover up places.