This is a very powerful rubber band powered gun.
It can be made easily with the help of items available in your office or your pen stand!
Step 1: Things You'll Need
1.A Pen With Cap
2.A Rubber Band
3.A Stapler With Staples
Step 2: Dismantle Your Pen
Remove the cap, the bottom, the top and the refill from your pen.
You wont need the top. You can discard it.
Step 3: Make the Hook for Your Ammo
Take the rubber band and the stapler and staple the rubber band so that the rubber band is grabbed by the staple as shown in 3rd pic.
After that, pull the free end of your staple open so that it looks like the hook in the 4th pic.
Step 4: Assemble Your Gun
Put the rubber band inside the cap as shown in pic3.
Now take the body of your pen and attach the cap of your pen as shown in pic6 with the help of tape.
Step 5: And You Are Done....
Your ammo will be your refill.
insert the refill so that its end is towards the rubber band hook [pic2].
Pull your refill back and Release it to shoot.
BE CAREFUL NOT TO SHOOT AT SOME ONE IN THE EYE.
YOU CAN USE A STYROFOAM SHEET AS A TARGET.