An easy answer would be something ridiculous and derivative like the Super-Pets or the frequent team-ups with Hercules and Sampson, BUT...
I don't know if it would be any of the above. Stories involving battles with Mr. Mxyzptlk are strange, but they serve the same function as the Holodeck does in STAR TREK: THE NEXT GENERATION: a way of telling very unusual or different kinds of stories.
The most ridiculous aspect about the Weisenger Age wasn't so much a magical imp or that dog. It was a style of storytelling, common in the first decade of Weisenger's tenure, under (
ugh) Otto Binder. A storytelling style that had an emphasis on sitcom-esque gimmickry that represented a temporary change or reversal in the status quo that was soon reversed.
All the best Silver Age stories would have to wait for the sixties, and the science fiction grandeur and adventure spirit of the incredible Edmond Hamilton.
Otto Binder (artist's conception)People talk about the Weisenger Years like they're crazy and unpredictable with new concepts coming out all the time, but what I've read (at least in the
beginning), the Weisenger Years were static, still, and set in stone like the Pyramids of Egypt. If any change in the story is introduced, such as Lois learning Superman's secret identity, Otto Binder immediately weasels out of it somehow and we're back to the same-old, same-old.
People get upset when a character is brought back from the dead, as Marvel Girl was in the mid-eighties. Why? Because it's a
cheat to reverse something when you think something profound just happened. The "pull the rug out from under" gimmickry of the early period of the Weisenger Years triggers the EXACT SAME aggrivation as learning "Bucky is being brought back from the dead."
This is why I get frustrated with the 1950s, despite Wayne Boring's spectacular art. Superman in the 1990s might have been a neverending mindless action movie, but Superman in the 1950s was a neverending, mindless sitcom.
This is why "Imaginary Stories" were both necessary and inevitable: if nothing ever really changes, if in the end nothing ever really does happen, of course the audience has a strong desire for things that are world-cracking.
It's funny: I bought my SUPERMAN SHOWCASE VOL. 1 (most of which are written by Otto Binder) and my GREEN LANTERN SHOWCASE around the same time, and I've read the GREEN LANTERN showcase to the point its dog-eared and tattered (and I'm thinking about buying another) but my SUPERMAN SHOWCASE VOL. 1 is somewhere up on my shelf, in pristine shape.