Brainiac skull diodes (nonfiction)
From Gnomon Chronicles

Brainiac, wearing his red skull diodes.
Brainiac skull diodes are red, diode-like machines which Brainiac often wears on his head.
In the News
Brainiac needs Fugitive Rubies for skull-diode upgrade.

Medulla oblongata (nonfiction) is eager to install first set of skull diodes.