Match Rocket
This a very simple and effective rocket. This is the same thing from cube000. I thought it was so interesting that I had to do a instructable. Now I don't know the science. But the rockets just fly 5 feet but you can reuse the rockets and there about 50cents for all the materials.
Making the Rocket+platform
First get materials(there all in the picture) then get a paper clip and bend it to the shape I made in the picture. Then get the match and cut off the end and get the flammable material. Now get a pointed stick and get a 2cmtimes6cm piece of aluminium foil and wrap it around the end of the stick. Now get the rocket out of the stick and put the flammable stuff in the rocket.
5-4-3-2-1 Llllllliiiiiifffffttttt Oooooofffffff
Now put the rocket on the end of the launch pad. Make sure there are no openings. Now get a lighter a light it at the bottom of the rocket. It will lift off and fly. Warning do outside away from objects and I will not be responsible for injurys.