Iron Man

Andy Kuhn will do a convention sketch on an airline 'barf bag' of your favorite character throwing up.
I'd been trying to get one of these for a few years now, and was able to hook up with him at this year's Emerald City Comic Con (2011) to get this one.
I decided on Iron Man, because I thought the helmet would cause problems and help in the "yuck" factor of the sketch. Andy made good use of that (and special kudos for using silver-age Iron Man!!) as well as it being an Air Canada bag.
Also, knowing Iron Man's history of being a drunk makes this even funnier.