The Canonical List of Self-Amputating Supers

Arm-Fall-Off Boy/Splitter (DC)

Bizarro Triad (DC)

Captain Marvel II (Myron Fass)

the Chief (DC)

Divisible Man (Fantagraphics)

Fantomah (Fiction House)

Frost

GearHead

Ghoul (Ultraverse)

Girl-Bot of the Faze One Fazers (AC Comics)

HeadMistress

HeadShop

Jack O'Lantern (Marvel)

Jet Headstrong of the Defenders of Dynatron City

Konk (DC)

Mr. Jigsaw (Charlton)

Patchwork (Wildcards)

Sherrif Largo

Springer of the Faze One Fazers (AC Comics)

Weapon X II

Zedabon Zarr (DC, villain of "Battle Against the Breakaway Bandit," FLASH #158)

Honorarable Mention:

The Eye

Thanks to:

David Crowe (jetman@primenet.com)
Jorge de la Cruz (jdelacr@ess-consultants.com)
Steven Howard (blore@ibm.net) 
Laurent Lehmann (llehmann@club-internet.fr)
Danny Sichel (eds7466@umoncton.ca)