Why is there no Fruit of the Loom banana?
One theory (although likely spurious) says that the banana was
left off because sailors are superstitious about having bananas on
their boats, and Fruit of the Loom underwear would be forbidden if
there was a banana on the label.
The simplest explanation is that the design was originally an
apple, and then a classic cornucopia, or "horn of plenty," which
until the discovery of the Americas would not have included the
banana (native to the New World).