Introduction: Reuse a Bottle: the Fun Way!
So today i found a 2 liter bottle on the street. I took it home, and looked up some water rockets i could make out of it. I found none that didn't use PVC pipe, flame,or cork. SO i made this simple rocket made with REAL household materials! Reuse the fun way! You can reuse this OVER AND OVER. i've used mine about 30 times.
Step 1: What You Need:
You'll need:
BIC pen
2 liter soda bottle
bike pump
pliers
nail+hammer/drill
Step 2: Make a Hole
Make a hole in the cap about the size of the pen. Sorry for the blurryness, but it's good enough to illustate the point.
Step 3: Take the Tip Off
Take the tip off the pen, i mean the blue part. Stick the sloped part Into the NEEDLELESS bike pump, and shove the other end into the hole in the cap. Fill the bottle about 14 with water, and screw the cap on.
Step 4: Pump!
Arrange the bricks so that the bottle can fit upside down between them. PUMP as much as you can ono the bike pump, and if it doesnt fly when you've reached your limit, Gently lift the bottle off the pump nozzle a little, and it should either fly around in loops like mine, or just do something cool. If you keep trying, It'll be AWESOME!!
Step 5: Enjoy!
Enjoy your new bottle rocket and the fact that you just saved the world. Kinda. Thanks, Vote if you like it! Kinda trying to win a contest here....Also, check out my other ones!

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Discover Green Science Fair for a Better Planet
21 Comments
14 years ago on Introduction
im gonna make a rocket skateboard with an onboard pump with this instructable and a lot of tape
Reply 12 years ago on Introduction
the rocket skateboard is
already invented
Reply 13 years ago on Introduction
post an instructible on it please! I would love to see how that works out
13 years ago on Step 5
good ible
13 years ago on Introduction
In that last picture you say, "that place is awesome," where is that place?
13 years ago on Introduction
you do realize that i am now going to twist this into an idea that will shoot projectiles right?
14 years ago on Step 5
do you have to put water in it
Reply 14 years ago on Introduction
it helps
14 years ago on Introduction
if u have 2 wait until u "find" a bottle i think u need more soda
14 years ago on Step 5
Thanks. Ihave been looking for a simple way to do this. perfect.
14 years ago on Step 5
Thanks I just made a small one with a small pump and a small water bottle I tried and it worked now its time to add fins and a parachute oh and a nose cone and paint.
14 years ago on Introduction
Wow we have the same bike pump! (cool instructible)
14 years ago on Introduction
WOW!!!!!!!!!!!!!!!!!!Thanks a lot!I tried this and i pumped it to 20 psi and it shot off.It is really cool!!!!!!!!!!!!!!!!!!!!
14 years ago on Introduction
very nice instructable!I got a bike pump for Christmas yesterday so I am going to try this.
15 years ago on Introduction
I don't understand step 3.
Reply 15 years ago on Introduction
uhhh well... the BIC pen that you have, take the blue tip off of it with like pliers or sumthing. then, stick that part into the bike pump. I dont know it most bike pumps are like mine, so it might not work. Jam it in there as hard as you can(thats what she said) and stick it in the hole in the cap of the bottle, and continue to step 4...i think.
Reply 14 years ago on Introduction
This Fill the bottle about 14 with water, and screw the cap on. might be the line in step three causing the confusion.....I assume you meant 1/4 full ?
15 years ago on Step 5
Awesome Instructable
15 years ago on Introduction
one time i made a watter rocket. i used a section of old thick tubing that i found in the garage with a garden hose attachment at one end that was the right size to fit real snug in the neck of a 2 liter bottle. i cut it down to about 4 in. that is it. then you just screw it onto the end of the hose, stuff the bottle on the end of it, point it to the sky (grasp at the metal part not touching the bottle point away from house, and so it will hit you in the chest not the face), then have your friend turn on the watter full blast. maybe i should write up an instructable. we got some good distance on it, but the best part is getting blasted with watter.
15 years ago on Introduction
We just collect ours up, fill them with water and stick them out at 100 Meters and shoot them with our firearms.. then we recycle them... water does not compress, hydrostatic shock is fun !