The most recent one I did up was Azathoth's profile. That's not really shareable one though since it's specific to him. But my next project is creating a bunch of alt logos for the site to be used in a set of free templates. People can just lift the template of their choice's code and drop it whole into their stylesheet box and they will instantly have that skin for their profile, regardless of what skin they use as default.
They'll have to make their own personal logo though if they want one. The default logo will just say Warrior Cats RPG. But, it will look nice and match that skin.