100 Grey Foam Nose Cones
Nose cones work best when glued in with high temperature hot glue. Place a bead of hot glue all the way around, about 1/4″ down the inside of your paper tube then twist the nose cone into the tube.
The following video will show you how to make a rocket from start to finish. If you just want to see how to glue the nose cone in you can skip to 2:00 in the video.