My first character was a "muppet-born" named Ché-Elmo, who interacted with the group over video chat directly (a hand-puppet Elmo with a red star cap was all they saw and heard), and was a Warlock who had made a pact with the being Carl Marx in exchange for power. His tome of power was Das Kapital, which I'd have him leaf through while we played.

He went missing a few years ago; it's my belief that he's out there now in some other dimension still sticking it to every merchant he encounters.