Every kid likes to launch foam rockets. There’s something satisfying about shooting them up and seeing how far they can go. You can make your own launcher with PVC pipe and flammable aerosol such as hairspray.
The total cost for this project is around $25. Have fun making it, and your kids will have a blast with it, or just for yourself.
Image source: NightHawkInLight
Continue to the Next Page to watch this fantastic video: How to Make a PVC Rocket Cannon.