The Elvinator do it yourself project from Instructables is still within its ongoing stages. It aims to combine a robotic Elvis head with the Terminator.
When I look at the picture, I am not sure if the Elvinator looks more like a young Elvis with a Terminator skull, or the Terminator with an Elvis wig.
While the Elvinator project is not finalized, it is definitely a cool one to keep tabs on.
By the way, it is mentioned that this is a difficult DIY. In other words, not for the weak hearted.