Ed "Big Daddy" Roth was rumored to have originally penned Coop's Devil sketch, but it is widely known and excepted as Coop's art.
Tod Macfarlane bought the rights to all of Ed Roth's artwork and has been creating some 'toys' of them (Ratfink) IF the first statement IS 100% true Tod is an ass when it comes to pursing ANY type of copyright infringement.....
(Got a nice letter from his camp back in 2000 for using RatFink on my old comedy band website..... and UNDER the image we had a plea calling for info on who owned the image and how we could obtain rights to use it)
And Mike, keep this image in mind for a future sig button ;)
and if that don't work for you then how bout this...
-Loki-