Doesn't seem to look right detail-wise, nor does it look like it fits on his head very well (either practically or in the sense that it looks like the right size and level of detail). Plus, while I get the concept, it really seems more like it's nudging into the Engineer's turf style-wise.

I would call this
"The Horny Man"

I love it
they should totaly add it to game

These are really cool.

This would be a cool misc :D