Ultimate Minecraft Cannon

I'm going to show you how to makes minecraft cannon. It does not shoot far but it's pretty cool

1: a block that doesn't burn or move
2: tnt
3: water
4: ladder
5: flint and steel

First make a u wth ur solid block
Then put two blocks on the open end
Then place the ladder like In the pic
Next put the water next to the ladder
Last place tnt on top of the ladder and next to the water

Light the tnt in the water first
Then light the other one




Have fun!!!