How To: Build a liquid fueled rocket with office supplies

See how you can build a liquid fueled rocket with office supplies, mainly... a Sharpie magic marker and some duct tape. You'll also need some gas duster, the air cleaning can of gas. It's a pretty simple rocket to build, won't take long, and is loads of fun. Except, you'll need to keep buying canned air to propel it into the air multiple times.