Edit: I think I've got enough entries for now. 
I'll start designing. Thanks for all your submissions!
So my drawing arm is getting a little rusty. I thought I'll make another one of these threads.
For the twist I mentioned in the title: I will draw your OCs in outfits from my comic's world, Terraria. I've been trying to establish more diverse nations, and clothing is reflective of cultures and environments they live in. So I figured I could use the exercise. 
Do note that these will only be colorless lineart, though if I really like a particular design, I may color them.
Now I'll try to do these as quickly as I could, but designing outfits take some time–so I may or may not be a little slow depending on my irl schedule.
And that's all from me! If you're interested, feel free to drop your characters below and I will tag you once I'm done. Thank you.
