Adult Futurama Brain Slug Headband | Futurama Costumes. You know what sounds like a bigger nightmare than having a space parasite attach itself to your brain while you maintain consciousness and realize that you’re being controlled by a vicious parasite? Not having the right accessory to wear to a Futurama-themed party!A brain slug at least can be dealt with; the mortification of being without a cool costume is difficult to undo--especially in these days... - Adult Futurama Brain Slug Headband | Futurama Costumes. |