For all of the spectacular heights of the late Jack Kirby's legendary career, he had his share of creative low points as well. In my opinion, the lowest of those low points remains a dreadful story that began in Jimmy Olsen #139 (1971), as represented by this cheesy, jaw-droppingly bad cover (click on the cover for a larger view).
Appearing somewhere in the middle of Kirby's meandering New Gods saga, what was intended to be only a brief cameo for comedian Don Rickles turned into a two-issue, two-Rickles ordeal. In addition to Kirby's (astoundingly unfunny) version of Don, a "long lost alter-ego" named Goody Rickels also showed up.
Oh, and don't overlook the campy cover copy ("landmines in your lunchbox"?), the fat sausage fingers of Superman's left hand and the altered faces of Supes and Jimmy Olsen. Apparently, DC wasn't thrilled with Jack's version of the characters, so they had artist Murphy Anderson bring them "on model", or closer to their standard look. That seems extreme in hindsight, but really...when a hot creator you just stole from Marvel pens the phrase "defoliants in your succotash" on a cover and creates Goody Rickels, I can't blame DC for wanting to exert some measure of control over Jack's loopy, increasingly incoherent experiment.