I actually bought some comics at Comic-con. Including this compendium of Man-Thing issues from the 70s. Reprinted in black and white but it's big as a phone book. I was scared it might be a little painful to read (after all, whatever knows fear burns at the touch of the Man-Thing) but it was so much fun. Lots of 70s cheese and really weird moments. See, M-T's swamp happens to be the Nexus of All Realities so that he would have something to do every month. One time the realities all sort of got mixed up and so a jar of peanut butter transmogrified into a barbarian warrior. Also Howard the Duck materialized and was killed off a few pages later when he fell of a stairway to heaven (Howard would later get his own series and become a minor 80s icon, they even made a movie which I thought was great when I was 12 but is widely considered to be among the worst movies ever made). Further up the stairway, a wizard gives M-T and buddies wings so they can fly away. The peanut butter barbarian asks the wizard why he didn't give Howard wings and the wizard says, I forgot! Not to mention that Howard, being a duck, should have wings. But doesn't.
In another issue, Man-thing fights ghost pirates in space!