Corinnguard
Hero
The races from Battlelords of the 23rd century.
Ram Pythons, the Phentari, the Eridani.

I still am absolutely in love with the concept someone once mentioned of an obsidian shardmind character that fell to earth on Athas.Wilden and those crystal psionic people from 4e were very cool.
given obsidium is a useful cutting implement you would have to worry about trying kill you and use you for parts it is a different challenge.The construct PCs break the power balance in Dark Sun, where the survival is one of the worst challenges. If living constructs don't need water or food, then the players save a lot of problems. Other point is even if they were allowed, they wouldn't be wellcome in the urban cities. The templars could say that construct was created by the sorcerer-king, and then it could be catched or "confiscated". And they would be feared by the rest of population. Constructs created by arcane magic in Athas could be creating a defiler effect, even when this is not intentional.
Shardminds could be possible in Athas, but they should wear some costume or using illusory effect to infiltrate among "organic beings".
* Homemade PC species are very easy to be found in internet, but someones should be "nerferd" to can be playable PC species.
That would be quite cool actually, a psionic race hunted so their corpses can be mined, but then each shard now being used as weapons retains a psionic memory of its mind and seeks to reform its body.given obsidium is a useful cutting implement you would have to worry about trying kill you and use you for parts it is a different challenge.
damn that is a good ideaThat would be quite cool actually, a psionic race hunted so their corpses can be mined, but then each shard now being used as weapons retains a psionic memory of its mind and seeks to reform its body.