This is a great thread. I mostly draw my own characters but I still adore seeing them drawn through other peoples eyes, so to say. I'll post a few characters here - I don't have that many so people are free to draw any of them but I feel a few ought to be highlighted.
This One. It has no finger- or toenails and is anatomically about as detailed as a mannequin, with a similar plastic-like texture to its skin. It fiddles a lot with found items, pretty much always holding something.
Darell of Candia because I keep telling myself I ought to draw him but have never gotten around to it. He's essentially Dardariel, except older, sicklier, with a beard, and wearing incredibly worn-out 18th century peasant clothes with lots of feathers in his hat.
Matlal. Because I think he looks cool and deserves more art, even if I don't use him anywhere at the moment. :D Bonus points for having him interacting with a hedgehog as if he's seeing it for the very first time like "That's the weirdest porcupine I've met..."
Henry/Julia who's like 3-4 characters in one. There's Henry Newman, Julia Wright, General Newman (aka. medfant Newman) and the werewolf form to choose from.
Werewolf-form can be drawn goofing off like a dog perhaps? Chasing its own tail, ripping a feather pillow apart, howling, chewing on shoes, eating a book or important documents, standing on hind legs looking puzzled as if it was trying to human but wasn't sure how.
My main request with the human forms is that...please don't draw hir without arms, it makes me uncomfortable. Ignoring all the injuries on hir scarmap is fine, as is giving hir prosthetic arms or covering the arms up in gloves. The 1940's personas can also be shown doing lightning-magic.