Well it took me a while to post but here it is! I am posting a little tutorial of how I made a master chief helmet for my sons birthday.Now keep in mind I have never made one before,and yeah, I really didn't know who master chief was haha. Thankfully my target audience was a group of first graders who thought I "nailed it"!
So I started out with a metal bowl and two eight inch round cake pans and I stacked them up so you can see where I was going with my design.
Once Baked it looked like this...see ow the bowl is lined up with the back edge of the round? That is going to be the overhang for your helmet. Put frosting between each layer as you stack and chuck these babies in the freezer to firm up. Note: Make sure all cakes have cooled completely before you assemble and put in the freezer, otherwise it'll be a hot mess and cake is more likely to crumble if its still hot.