"Iconic" is a subjective word. What do you feel is worthy of "veneration?" All sorts of individuals, associations, critics and such make lists of "iconic" movies, books, music and etc. If you buy into someone's list ... Well, your choice. But, it stills boils down to what you choose to venerate. Or, you can simply accept the subjective reasoning of someone you respect select your icons. Or, as many do, someone they have knowledge of does the "heavy" lifting, which makes it easy.
I decide what is iconic in my little world be it pistols, movies, automobiles, pipes and etc. and "screw" the rest of the world.