"Ack. Ack ack. Ack, ack, ack!"
Humans will be terrified of releasing doves in your presence when they see you wearing this authentic alien drone mask from the cult classic "Mars Attacks!" The bulging eyeballs, visible brain, green skin, and open mouth all blend to create the perfect alien menace.
The actual eye holes are subtly placed so as not to ruin the image you are portraying while still allowing you to see easily while wearing this mask. Combine it with an alien space suit and an alien rifle and you will be a hit this Halloween.