I just stole his Sweetrole!
Oh, I thought it was gonna be something more interesting, like if you used the wabbajak and he turned into a sweetrole, then you fed him to elisif.
Speaking of which, I always steal sweetrolls from Sovngarde.
Speaking of sovngarde (this is getting off topic) I am a level 82 and my prized posesion is a cabbage I got from sovngarde I have 400 in an end table by my bed and 1 cabbage in every storage container in my hearthfire house. Then something horrible happened I found out sips from the yogscast already did this.
Poor Ulfric, even thats too much for him.