Interactive post: How can we introduce new 'quirky-yet-sustainable' food in the market?

Food - a topic loved by mostly all of us, featuring not only in our kitchen but taking over our bookshelves, televisions, social media feeds, even newspapers.. 
This weekend read wants to be a discussion-springing one, so please feel free to leave comments with your thoughts an ideas. 

Theme: how can perception and perspectives of foods can be manipulated in order to introduce sustainable, but perhaps quirky, produces into the market?
This came to my mind after lunch discussions with my examiners after passing my viva.. after 3 hours of discussions on my thesis we proceeded to discuss about introducing green crabs in the market and generally getting people to eat more quirky seafood than the usual cod or haddock or salmon fillets.. 

One of the professors (thanks Mark!) gave the great example of how companies got us to eat long stem broccoli compared to the typical round form. Why ? Because harvest is easier. How? We are still not quite sure, yet shelves in local supermarkets are booming with them. Appealed to our laziness? Made them look fancy by packing them in a box? Showed us some fancy recipes? If people know and remember of a time pre long stem - how did you started buying the long stem and why? 

Another example is avocados - they quickly became a symbol, an obligate component for the perfect hipster brunch.. how did it start? Can we harvest the same power to promote sustainable foods?


One possible idea would be the exploitation of social media - let's flood instagram with creations using unusual foods.. 
Or get a TV presenter to launch green crab, for example, as the next 'cool and fashionable' food 
Or encourage supermarkets to launch new lines,  (e.g. the 'invasive' species )


As absurd as it sounds, maybe we will all be eating some seaweed and crab lasagna in some fancy hipster restaurant in the near future...