Well, I suppose I could always volunteer a few of mine. The guy in the pic you see is Teddy, I've had him for a while, and have revamped him a few times on what race he is, but I guess you can say whatever you want while he has his hat and coat on. Flash Sentry stole his cutie mark, so I'm still trying to figure out what his is going to be now, but he's often got a knack for the manipulation of electricity, though he often calls it crystalline energy.
Next to him is Sasha, his daughter. She's half pony, and half griffon, and you call that a hippogriff. In the picture, you can see her cute/foal version, but there are several other version where she is older. She is skilled in the bow and arrow and stealth/guerrilla abilities, and has inherited some of her father's abilities as well, though she considers them the opposite of stealth and chooses to use them only rarely.
I roleplay often with many other characters I have made. If you still need some changelings, I have a few of those. I also have a team of mercenaries/bounty hunters if you think that'd be cool too.
Do parody OCs count as well? I could change a few attributes to make them more original if that helps.