the cybermen are a fictional race from the show dr. who ( for those of you who don't know ). in this instructable i'll show you how to build a classic cyber-helmet.
Step 1: the sides
To make the sides of the Cyberman helmet take five cardboard ovals the largest being nine inches and then decreasing by about a quarter of an inch each oval after that. Now glue/tape them together so that the ridges can be clearly seen. replicate this for the other side of the helmet.