Body Part Enhanced – The character has a single body part that is enhanced. Cyborgs that have had several body parts replaced are not included in this list. Also, the fictional emphasis is on the weird appearance of the body part.
In Doom Patrol V1 #115, some mutants that may be the most freakish characters in comic book history are extremely powerful.
Hellboy (Dark Horse) has the Right Hand of Doom grafted to his arm when he was an infant and this hand gives him the power to potentially end the world as we know it. You can even buy a replica of the Right Hand of Doom!
Iron Fist (Marvel) appears to have an enhanced hand but actually does not. Iron Fist focuses chi into a single punch but his hand is actually a normal hand.
Machine Head is a crime lord with an enhanced head (The Official Handbook of the Invincible Universe #2, Image).
A man with computer enhanced eyes appears in Strange Adventures #196.
A man with an atom enhanced head appears in House of Mystery V1 #129.
A man with a computer enhanced head appears in Strange Adventures #128.
A man with a planet enhanced head appears in Strange Adventures #156.