alright, here is a GREAT, harmless prank that my roomates and other guys in the hall did to each other a lot.....Get someone to help you,
Materials: 1 light blanket
Bout 25-50 sheets of paper (depends how messy you want it..more the better)
Sissors
You cut up allllll the pieces of paper into like 1/2"x1/2" pieces, then put the whole pile in the middle of the blanket....get a buddy to carry the blanket to the middle of the room with you, then on the count of three you lift the blanket up, then SNAP IT!! real hard.....Pile of paper gets BLASTED all over the room...you will find pieces of paper 5 years from now somewhere in that room