I made this Iron Man cake for my husband's 26th birthday. He's a huge fan, and we both loved the movie, so I just had to make him a cake!
I just used a rectangular cake and frosted it with chocolate frosting. I used a print-out of the Iron Man mask as a template. I laid it on the cake and poked holes through with a toothpick at all the main points of the mask to "outline" it. I then removed the template and "connected the dots" with chocolate frosting in a piping bag and colored in the areas with red, yellow, & white frosting (this took some time & patience).
My husband loved the end result! It was a very fun birthday for him!