kl thanks ill make one with the spare tubes i have left over from the cannon itself.

but really do they work???

Yer im British, so these "extensions" do they really work at reducing the noise in my "experiment on the expansion of gas"

Heay everyone ive just made my first spud cannon with my dad and a couple of mates. It fires great (see vid below) The problem is that its too loud and i live in a residential area, it is perfectly safe to fire it in my garden as i have a huge wall at the end of my garden which can be seen at the en...