Tin can cannon

This is a project that I took on as a child but still could have hours of fun with it today!!!!!

All you need is
4 tin cans (like the ones your veggies come in) all the same size
Electrical tape
lighter fluid
lighter

First take 3 of the cans and cut the tops and bottoms out of them.Stack them end to end and tape them really good so that they are sealed.with the 4th can it should be like tomato sauce or something easy to get out through small holes,because you just need to take an old fasioned can opener and go around the edges making triangles all the way around it.and on the bottom just put a small hole in the center.then tape it to the others with the small hole out and the triangles facing the other cans.then all you have to do is put lighter fluid through the hole put a tennis ball in the other end and light the fumes coming out of the hole.and boom!