I want him to bite off his own fingers, spitting them at Rand before throwing himself into the Pit of Dhooom; the fires turn black when he lands.

No wait, I want him to cut his own heart out, slap Perrin in the face with it, and say "this is what it's like to be out of control, you silly touchy-feely %#$@!" before he dies from being be-hearted.

No wait, I want the souls of the people he's wronged to appear on his face and skin like Nightmare on Elm Street 4; they pull him apart, causing him to nearly die as he stabs the Bore, making the Pattern heal the DO away. Then Perrin smashes his head with that hammer, Mat swings between his legs with the sharp end of his spear. Rand? He just slaps Fain in the face. With Callandor.