4_eyes
bird_brain
black_eye
blockhead
brain_washed
brainstorm
crackhead
ear_drum
egg_head
face_lift
feeling_light_headed
fisheye_lens
gearhead
general_electric
good-bad
happy-sad
head_games
head_in_the_clouds
headphone
headstand
hole_in_his_head
insight
lockjaw
look_both_ways
missing_a_few_marbles
my_minds_eye
nosey_neighbor
out_of_my_mind
piece_of_mind
pot_head
question_slipped_my_mind
screwed_on_right
strong_headed
tech_head
think_outside_the_box
water_on_the_brain