Pen Launcher

I made this for 'Pen Wars' in my class.

Warning : Don't shoot at the vital organ !

What you needs : - 15 sheets paper of 12 cm × 17 cm
- Pen ( I just use the inside of the pen )

Step 1: Roll the Paper

Roll the paper with the body of the pen

Step 2: Gluing or Binding

Use Fox Glue for gluing ( you can use the other glue, but Fox Glue is better ) or Binding with rubber band

Step 3: Testing

Put the inside of the pen on the rocket, take a long breath, then pull it in the launcher