Cook-Cook's head

 is a miscellaneous item in Fallout: New Vegas.

Characteristics
Take the head of Cook-Cook the fiend and present it to Major Dhatri for a reward.

If you destroy Cook-Cook's head when killing him (this applies for Violet's head and Driver Nephi's head as well), you will obtain a mangled head that is worth less caps to Major Dhatri.

Cook-Cook is a member of the fiends gang. He is a good chief, but also a rapist.