Megatron is a modified and repainted SWTF Darth Vader Tie Fighter. I felt that the long, thin body of Vader worked perfectly with G1 Megatron's thin build. I cast the face off of a SWTF Han Solo and the Helmet off of a Megatron fighting robot pop holder. The head was made using Mighty Putty. The cannon barrel and back are from a generic G.I. Joe-like soldier weapons pack I picked up at Target. I used the red LED and wiring from a Dollar Tree "Optimus Prime" KO to make the cannon light up with the push of a button. The compartment where the spring used to shoot out the lightsaber was the perfect size to use as a button battery compartment. I used Testors silver, light gray, bright red, dark gray and flat black for most of the painting.