This is another one of those famous pen bows!!! =) Enjoy! P.S. these things are kind of powerful, don't aim at someone.
DISCLAIMER: You can't sue me if you break anything with this. Including people and animals. This is my first Instructable so please be sure to post any comments/tips/pointers/constructive criticism. Sorry the pics aren't really that great...they were taken from a web cam...well enjoy!
EDIT: Thanks to all you Instructablers who gave me over 3,000 views!
Step 1: Materials
All you need for this simple bow:
1. A used,dried out pen that you can easily take apart(it would be good if it is used so your not wasting)
2. 2 thick, powerful rubber bands
3. about 7 paper clips ( you may not need them all)
4. A straw.
5. Scotch Tape
Step 2: Take Apart the Pen
You know the drill, just take apart the pen. Save the insides, we'll use them later.
Step 3: Making the Body
Tape 4 paper clips together in a row very firmly, then tape one or two more on the bottom or top if it isn't stable enough. SEE PIC. Now, just tape this to the empty pen barrell. Cut the straw in half and tape one part to either side of the paper clip thingamabob. SEE PIC.
Step 4: Attaching the Rubber Bands
First, tape the two rubber bands together so that they look like one thick rubber band. Then, just cut them in half and tape them onto the empty pen barrel. SEE PIC. You might want to make sure you can pull back the rubber band without it flying off, it really hurts if it does.
Step 5: Ammo
There are two choices for ammunition that i know of: wooden skewers and the pen part. For wooden skewers, its pretty simple, just place it on the paper clip thingamabob, pull back the rubber band, aim, and BAM! Same thing for the pen part pretty much. Some ways to modify your arrows are: Cut out 3 fins from cardboard or thick paper, glue them on to your arrow, and you can cut out a nose cone, attach it to the front of your arrows, and it is now more aerodynamic. I personally don't modify my arrows because it messes it up sometimes, and i usually use the wooden skewers because they work better as arrows.
Step 6: FIRE!!!
Well, um, yea this part is pretty self explanatory, so, have fun with your new pen bow and arrow!!!
P.S. Please post any tips in the comments so I can improve!(special shout out to postapoc's bic pen bow and arrow instructable)This thing is tons of fun at school, work, wherever you are! You can mess around with people and drive them crazy!