Sometimes when inspiration strikes from your immediate surroundings, it strikes you upside the head and knocks you silly. This is particularly dangerous for comic book creators, who work in a fairly silly field already and whose immediate environment is pretty much their desk:
Yes, you're reading that right -- this is "The Calculator" and "Calendar Man", deliciously featured on the same DC "Who's Who" page. I anxiously await the introduction of "Blotter", "The Stapler", and the ever-intrepid "The Mouse", usually found in his secret hideout, named (inevitably ) "The Mouse Pad".
(All images and characters ©DC Comics, Inc., from "Who's Who: The Definitive Directory of the DC Universe" #4, 1985.)