MAD mag, in the 70's(edit: 60's, fuck I'm old), was first time I saw it.
You have the death frame, which I don't think has been done.
( Tahkcalb ω∞ for sigs, Fri 25 Jan 2008, 8:58, archived)

hahahahahaha
yes, I assume its crossed a few peoples minds, mainly at Marvel comics.
( HappyToast is dancing like Tim Booth on, Fri 25 Jan 2008, 8:59, archived)