Before disembarking from a SWISS plane, no matter the destination and no matter your class of travel, a tiny bar of Swiss chocolate will be yours. This promise is even right there, on the website: "Swiss chocolate: A sweet goodbye with the best wishes for your onward journey and in the hope of welcoming you back soon. Even on the shortest flights."
Switzerland may be one country with excellent chocolate, but what really causes these to stand out (and warrant thousands of photos in Google Image Search results for "swiss airlines chocolate") is that clean branding that extends from the packaging to the raised logo on the bar itself. It's modern and, at the very same time, evocative of the thoughtful touches of the dawn of the jet age.
Whoops. Ate it upside-down.