I always liked mods that bring some w40k content to Skyrim so here's an idea of a servo skull as a pet or a summon.Basically you'd have different variants like a skull which would heal the player and some kind of shield or one that shoots some lower level destruction spells or even one that rushes the closest enemy and self destructs. Since for some reason i can't upload an image here's a link- http://vignette2.wikia.nocookie.net/spacemarine/images/9/9a/Inquisitorial_Servo_Skull.png/revision/latest?cb=20110822021535
