How do you make weapons from school materials?

hey you could always do what i did get a rubber band and a peice of paper

step 1: rip a small part of the paper fold it till its a rectangle

step 2: fold the rectangle in half

step 3: put the rubber band between your fingers

step 4 place the folded peice of paper it the rubber band

step 5:pull back and fire

step 6: enjoy ;)