This something I came up with in history class one day. A small bow and arrow out of a old pen and a rubber band

Step 1: Materials

Just a old cap ink pen and a rubber band

Step 2: Tools

A sharp knife and common sense when using

If you have problems use the knife

Now this is where common sense comes in. Use the knife to bore out a hole in the middle of the pen. Don't bore it to much or it will mess up.

This is why I said don't make a big hole. It doesn't matter which side

You don't really need these but they help. Again with common sense and sharp knife make notches that line up with your arrow holder on each end

Put the rubber band like you see here.

Now if you get people mad its not my fault but there you go. Have fun:)

If your arrows don't shoot as far as you like then wrap the rubber band the front like this