A side-facing head shape with three gears inside, representing thinking, inside a square shape with curved edges.

Head Shape With Gears

The head of a man facing to the side with gears above his head, surrounded by sparkles.

Head Of Man With Gears Above Head

The head of an alien or monster character with cone-shaped ears and feelers on its head.

A sculpture or bust in the shape of a head.

An artificial intelligence robot head with gears.