[@Dinh AaronMk]: 6 easy steps (Note, this is something of a joke, given the vagueness of the question) 1 - Buy/find a GAU-8 or M61 cannon. 2 - Buy at least 4,000 rounds if you want to fire it for any appreciable amount of time. (cost of shells is an estimated $100 USD per bullet - it'll be expensive!) 3 - Hook the guns up to a power source. 4 - Press trigger 5 - Go brrrrt until the gun is empty. 6 - YOu have now brrrted, and wasted nearly a half million dollars for one minute of thrill.