WARNING
This website contains dangerous, raw and cruel material.
It is especially not suited for immature people.
Building and using a marble gun is very dangerous.
Marbles flying at high speeds can cause serious material damage.
Never ever, I repeat, Never ever aim with a marble gun at humans,
It may cause serious injuries and in worst cases, death.
I am not responsible for any accidents or injuries caused
by marble gun made with these plans.
So if you hit or kill someone, it's your problem.
JMC I feel mature and responsible enough.