A while back I found instructions for a clever office supply bow and arrow
and was inspired. I decided to step things up a notch. In the end I had a nifty little "crossbow" that straps to the inner arm, perfectly concealed by a loose sleeve. With just a flick of the wrist, your classmates won't know what hit them!
This is the second incarnation of the design. The first
was held together entirely with gorilla tape and I only had enough pictures for a slide show.
Though not as powerful as other designs, this thing can still do some damage. Do not point it toward the face, it could easily take out an eye. Do not aim anywhere that can potentially damage something, it's awkward aiming with the forearm, so its accuracy can be hit or miss (pun intended).