My sons play Call of Duty, and it's basically an army game. You could do any army theme. Maybe something with a soldier? If the boy has an xbox, you could make the cake look like an xbox with the game on it as well. HTH
I was asked today to make a huge standing grenade that has the words "CALL OF DUTY" on the front of the cake. You could do that...maybe add some chocolate cake crumbs on the bottom to look like dirt.
I've done a Call of Duty Cake. I kept it simple:
http://cakecentral.com/modules.php?name=gallery&file=displayimage&pid=1771578
I have three requests for this cake in the coming weeks. I guess since the new game was just released....
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