This instructable primarily addresses the construction of the paper rocket. The launchers that you see in the video were constructed out of PVC pipe and were modified from original instructions that are attached. I was able to build two launchers for $100 and had enough stuff left over to start a third.
Step 1: Supplies
1. 8.5 x 11 Card Stock.
2. A short length of 3/4 inch PVC pipe. (about 18 inches works well)
3. A pair of scissors.
4. Elmer's Glue All (white glue)
5. You may want to use high gloss enamel spray paint after the construction is complete.