Since many people are asking how to make the head I use for my Megatron models, most recently War for Cybertron Megatron, here is the secret and the LDD file. Enjoy but please link back credit to this design to this page or the youtube video. Plagerism isn't cool! Thanks! Please also watch the video click here
I had pretty much worked out that this was how it was done (I'm getting better at reverse engineering especially in LDD).
I like it, it says Megatron. only thing I'm not sure about is the eyes, but that's a common issue with Lego robots, the only way to get anime accurate robot eyes is to draw them onto a flat tile.
in the comics G1 megs was usually shown with a blue helmet, but the grey is closer to the toy and tv versions.