Portable Pen Crossbow

Awesome

Sand paper
Small saw
String
Pen (a bic pen)
Tooth picks
Paper clip
Pliers

Sand down one side of the pen flat, then sand a small groove so the toothpick can rest in the groove

Push the toothpick into the pen. So that the string will have something to hold onto. Then tie two loops on the string and your done.

The cool thing about this is that you can take the bow off and put the pen back together

Take every thing apart wrap the bow string around the ink cartridge. Take off the back of the pen and put the paper clip inside. Then just put the rest of the pen back together