Common figures with an achilles heel......

[English Paul]

To give you an idea of what i'm thinking - Superman is easy to find pretty much any day of any week, but superman with an original emblem is in a totally different league.
Be it a missing part or a figure that for some reason is often damaged, their common status isn't as straight cut as it seems.

So fire some more into the pot?

[Meule]

Batman and Robin: missing emblems and gloves.
Batgirl: missing gloves and belt purse.
Ironman: button on his chest
Riddler: belt
Tarzan: knife
Conan: weapons
Star Trek crew: phaser, communicator or tricorder

[ScottA]

Hulk - knee and elbow pins

[Wee67]

Type 1 Goblin is not that hard, but one with an intact satchel is super hard.

[clemso]

I dunno, but why did Clark Kent have to wear glasses

[The Toyroom]

Zombified Invisible Girl
Isis without underwear or sandals, rubbed off gold

[piecemaker]

Ape Generals short sword,soldier ape gloves,astronaut helmet,Cornelius/Galen shoes.

[English Paul]

Trek foils.

[bizzaro megomauler]

aquaman with belt emblem, Mytzlplyk with belt emblem

[SUP-Ronin]

Zorro, Period.
King Arthur - Crown

[English Paul]

Zorro, Period.

Yeah, but Zorro was never common
If Zorro was on Ebay on a regular basis but always missing his hat, then that would be in the spirit of things.

[LonnieFisher]

robin's mask. the original.

[English Paul]

robin's mask. the original.

Yeah, but again, not really a common figure.

[LonnieFisher]

Yeah, but again, not really a common figure.

that's true, but it is the common "achilles heal" of the figure.

[supes]

Aquaman suit with no runs or stains