We emptied our bottle, by putting hot water in it to wash it out and get all the label off. Make sure it’s empty, not a single liquid in it.
We made our wings from a cardboard plastic with a curve at the beginning so it’s more aerodynamic.
Step 3: We assembled part of our rockets together by tapping or attach the wings to the side of the bottle.
Step 4: We attached a top of our bottle (a kinder egg capsule)