This is my first instructable so i hope you like it. I have been making these rockets for about 4 years and nothing else compares to amount of fun you can have for it being so easy. I will show you how to make the basic rocket and from there you can experiment with it, i have put these on boats and cars with surprising results.
Step 1: Gather your materials
All you will need for this instructable is
-1 soda bottle(with cap)
-a used toilet paper roll
-safety goggles(not shown)
-grill lighter(not shown)
Step 2: Rocket nozzle
What you will need to do is CAREFULLY round out a hole in the center of the soda bottle cap(you could use a drill for this).You want your hole to be about 1/4in or so.This is one of the things you might want to play around with after you have finished, the size of the hole will effect the performance of your rocket.
Step 3: Launching platform
For this step you will need to take your toilet paper roll and cut out a hole about 3/4in sq. The hole should be about 1/3 of the way from the top of the roll.