Have you ever noticed that airplane wings curl up at the very end? Why is that? Called winglets, the curled tips shrink the vortices at the end of the wing, which in turn improves its fuel efficiency.
Fact: No one has ever looked at a pair of Wingtips and thought they should be more like hideous looking Vibram FiveFingers. Fact: No one has ever wanted to wear Vibrams as dress shoes and wasn't crazy. Fact: Anything horrible should always be burned from this Earth for maximum visual and soul-fueling pleasure.