Here is a little something that I have been working on Classics Bulkhead. Crossover Captain America I think works well as a Bulkhead with Cybertron Crumplezone's head. I did have to extend the neck on the new head a little. Sorry I'm not the best at taking pictures. In the pictures you can see Crumplezone's new head as well Jetfire's head is even molded in the same color plastic as Crumplezone.