In the video I will teach you how to make the TNT man shooter. If you don't want to watch the video, just follow these simple instructions:

1. Dig a 3x3x1 hole in the ground.
2. Fill it with water.
3. Surround the hole with redstone.
Put TNT in the hole like this:

T T T
T X T
T T T, where T = TNT, X=Water.

4. Put the lever near the redstone.
5. Get in the water (the X mark above).
6. Flick the lever.
You will be launched in the sky!
REMEMBER! MORE TNT = MORE FIREPOWER!